SAFETY DATA SHEET Section 1. Identification Acetylene

SAFETY DATA SHEET Section 1. Identification Acetylene
SID HARVEY item #'s T733-1F,T733F & T733-1MT
SDS # Z0335
SAFETY DATA SHEET
Acetylene
Section 1. Identification
GHS product identifier
: Acetylene
Chemical name
: acetylene
Other means of
identification
: Ethyne; Ethine; Narcylen; C2H2; Acetylen; UN 1001; Vinylene
Product use
: Synthetic/Analytical chemistry.
Synonym
: Ethyne; Ethine; Narcylen; C2H2; Acetylen; UN 1001; Vinylene
SDS #
: 001001
Supplier's details
: Airgas USA, LLC and its affiliates
259 North Radnor-Chester Road
Suite 100
Radnor, PA 19087-5283
1-610-687-5253
Emergency telephone
number (with hours of
operation)
: 1-866-734-3438
Section 2. Hazards identification
OSHA/HCS status
Classification of the
substance or mixture
: This material is considered hazardous by the OSHA Hazard Communication Standard
(29 CFR 1910.1200).
: FLAMMABLE GASES - Category 1
GASES UNDER PRESSURE - Compressed gas
GHS label elements
Hazard pictograms
:
Signal word
: Danger
Hazard statements
: Extremely flammable gas.
May form explosive mixtures with air.
Contains gas under pressure; may explode if heated.
May displace oxygen and cause rapid suffocation.
Precautionary statements
General
Prevention
Response
Date of issue/Date of revision
: Read and follow all Safety Data Sheets (SDS’S) before use. Read label before use.
Keep out of reach of children. If medical advice is needed, have product container or
label at hand. Close valve after each use and when empty. Use equipment rated for
cylinder pressure. Do not open valve until connected to equipment prepared for use.
Fusible plugs in top, bottom, or valve melt at 98°C to 107°C (208°F to 224°F). Do not
discharge at pressures above 15psig (103kpa). Use a back flow preventative device in
the piping. Use only equipment of compatible materials of construction. Approach
suspected leak area with caution.
: Never Put cylinders into unventilated areas of passenger vehicles. Keep away from
heat, sparks, open flames and hot surfaces. - No smoking. Use and store only outdoors
or in a well ventilated place.
: Leaking gas fire: Do not extinguish, unless leak can be stopped safely. Eliminate all
ignition sources if safe to do so.
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
1/12
Acetylene
Section 2. Hazards identification
Storage
Disposal
Hazards not otherwise
classified
: Protect from sunlight. Protect from sunlight when ambient temperature exceeds
52°C/125°F. Store in a well-ventilated place.
: Not applicable.
: In addition to any other important health or physical hazards, this product may displace
oxygen and cause rapid suffocation.
Section 3. Composition/information on ingredients
Substance/mixture
: Substance
Chemical name
: acetylene
Other means of
identification
: Ethyne; Ethine; Narcylen; C2H2; Acetylen; UN 1001; Vinylene
CAS number/other identifiers
CAS number
: 74-86-2
Product code
: 001001
Ingredient name
%
CAS number
acetylene
100
74-86-2
There are no additional ingredients present which, within the current knowledge of the supplier and in the
concentrations applicable, are classified as hazardous to health or the environment and hence require reporting
in this section.
Occupational exposure limits, if available, are listed in Section 8.
Section 4. First aid measures
Description of necessary first aid measures
Eye contact
Inhalation
Skin contact
Ingestion
: Immediately flush eyes with plenty of water, occasionally lifting the upper and lower
eyelids. Check for and remove any contact lenses. Continue to rinse for at least 10
minutes. Get medical attention if irritation occurs.
: Remove victim to fresh air and keep at rest in a position comfortable for breathing. If
not breathing, if breathing is irregular or if respiratory arrest occurs, provide artificial
respiration or oxygen by trained personnel. It may be dangerous to the person providing
aid to give mouth-to-mouth resuscitation. Get medical attention if adverse health effects
persist or are severe. If unconscious, place in recovery position and get medical
attention immediately. Maintain an open airway. Loosen tight clothing such as a collar,
tie, belt or waistband.
: Flush contaminated skin with plenty of water. Remove contaminated clothing and
shoes. To avoid the risk of static discharges and gas ignition, soak contaminated
clothing thoroughly with water before removing it. Get medical attention if symptoms
occur. Wash clothing before reuse. Clean shoes thoroughly before reuse.
: As this product is a gas, refer to the inhalation section.
Most important symptoms/effects, acute and delayed
Potential acute health effects
Eye contact
: Contact with rapidly expanding gas may cause burns or frostbite.
Inhalation
: No known significant effects or critical hazards.
Skin contact
: Contact with rapidly expanding gas may cause burns or frostbite.
Frostbite
: Try to warm up the frozen tissues and seek medical attention.
Ingestion
: As this product is a gas, refer to the inhalation section.
Over-exposure signs/symptoms
Date of issue/Date of revision
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
2/12
Acetylene
Section 4. First aid measures
Eye contact
: No specific data.
Inhalation
: No specific data.
Skin contact
: No specific data.
Ingestion
: No specific data.
Indication of immediate medical attention and special treatment needed, if necessary
Notes to physician
Specific treatments
Protection of first-aiders
: Treat symptomatically. Contact poison treatment specialist immediately if large
quantities have been ingested or inhaled.
: No specific treatment.
: No action shall be taken involving any personal risk or without suitable training. It may
be dangerous to the person providing aid to give mouth-to-mouth resuscitation.
See toxicological information (Section 11)
Section 5. Fire-fighting measures
Extinguishing media
Suitable extinguishing
media
: Use an extinguishing agent suitable for the surrounding fire.
Unsuitable extinguishing
media
: None known.
Specific hazards arising
from the chemical
Hazardous thermal
decomposition products
Special protective actions
for fire-fighters
Special protective
equipment for fire-fighters
: Contains gas under pressure. Extremely flammable gas. In a fire or if heated, a
pressure increase will occur and the container may burst, with the risk of a subsequent
explosion.
: Decomposition products may include the following materials:
carbon dioxide
carbon monoxide
: Promptly isolate the scene by removing all persons from the vicinity of the incident if
there is a fire. No action shall be taken involving any personal risk or without suitable
training. Contact supplier immediately for specialist advice. Move containers from fire
area if this can be done without risk. Use water spray to keep fire-exposed containers
cool. If involved in fire, shut off flow immediately if it can be done without risk. If this is
impossible, withdraw from area and allow fire to burn. Fight fire from protected location
or maximum possible distance. Eliminate all ignition sources if safe to do so.
: Fire-fighters should wear appropriate protective equipment and self-contained breathing
apparatus (SCBA) with a full face-piece operated in positive pressure mode.
Section 6. Accidental release measures
Personal precautions, protective equipment and emergency procedures
For non-emergency
personnel
: Accidental releases pose a serious fire or explosion hazard. No action shall be taken
involving any personal risk or without suitable training. Evacuate surrounding areas.
Keep unnecessary and unprotected personnel from entering. Shut off all ignition
sources. No flares, smoking or flames in hazard area. Avoid breathing gas. Provide
adequate ventilation. Wear appropriate respirator when ventilation is inadequate. Put
on appropriate personal protective equipment.
For emergency responders : If specialised clothing is required to deal with the spillage, take note of any information
in Section 8 on suitable and unsuitable materials. See also the information in "For nonemergency personnel".
Date of issue/Date of revision
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
3/12
Acetylene
Section 6. Accidental release measures
Environmental precautions
: Ensure emergency procedures to deal with accidental gas releases are in place to avoid
contamination of the environment. Inform the relevant authorities if the product has
caused environmental pollution (sewers, waterways, soil or air).
Methods and materials for containment and cleaning up
Small spill
Large spill
: Immediately contact emergency personnel. Stop leak if without risk. Use spark-proof
tools and explosion-proof equipment.
: Immediately contact emergency personnel. Stop leak if without risk. Use spark-proof
tools and explosion-proof equipment. Note: see Section 1 for emergency contact
information and Section 13 for waste disposal.
Section 7. Handling and storage
Precautions for safe handling
Protective measures
: Put on appropriate personal protective equipment (see Section 8). Contains gas under
pressure. Avoid contact with eyes, skin and clothing. Avoid breathing gas. Use only
with adequate ventilation. Wear appropriate respirator when ventilation is inadequate.
Do not enter storage areas and confined spaces unless adequately ventilated. Store
and use away from heat, sparks, open flame or any other ignition source. Use
explosion-proof electrical (ventilating, lighting and material handling) equipment. Use
only non-sparking tools. Empty containers retain product residue and can be hazardous.
Do not puncture or incinerate container. Use equipment rated for cylinder pressure.
Close valve after each use and when empty. Protect cylinders from physical damage;
do not drag, roll, slide, or drop. Use a suitable hand truck for cylinder movement.
Advice on general
occupational hygiene
: Eating, drinking and smoking should be prohibited in areas where this material is
handled, stored and processed. Workers should wash hands and face before eating,
drinking and smoking. Remove contaminated clothing and protective equipment before
entering eating areas. See also Section 8 for additional information on hygiene
measures.
Conditions for safe storage,
including any
incompatibilities
: Store in accordance with local regulations. Store in a segregated and approved area.
Store away from direct sunlight in a dry, cool and well-ventilated area, away from
incompatible materials (see Section 10). Eliminate all ignition sources. Keep container
tightly closed and sealed until ready for use. Cylinders should be stored upright, with
valve protection cap in place, and firmly secured to prevent falling or being knocked
over. Cylinder temperatures should not exceed 52 °C (125 °F).
Section 8. Exposure controls/personal protection
Control parameters
Occupational exposure limits
Ingredient name
Exposure limits
acetylene
NIOSH REL (United States, 1/2013).
CEIL: 2662 mg/m³
CEIL: 2500 ppm
Appropriate engineering
controls
Date of issue/Date of revision
: Use only with adequate ventilation. Use process enclosures, local exhaust ventilation or
other engineering controls to keep worker exposure to airborne contaminants below any
recommended or statutory limits. The engineering controls also need to keep gas,
vapor or dust concentrations below any lower explosive limits. Use explosion-proof
ventilation equipment.
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
4/12
Acetylene
Section 8. Exposure controls/personal protection
Environmental exposure
controls
: Emissions from ventilation or work process equipment should be checked to ensure
they comply with the requirements of environmental protection legislation. In some
cases, fume scrubbers, filters or engineering modifications to the process equipment
will be necessary to reduce emissions to acceptable levels.
Individual protection measures
Hygiene measures
Eye/face protection
Skin protection
Hand protection
Body protection
Other skin protection
Respiratory protection
: Wash hands, forearms and face thoroughly after handling chemical products, before
eating, smoking and using the lavatory and at the end of the working period.
Appropriate techniques should be used to remove potentially contaminated clothing.
Wash contaminated clothing before reusing. Ensure that eyewash stations and safety
showers are close to the workstation location.
: Safety eyewear complying with an approved standard should be used when a risk
assessment indicates this is necessary to avoid exposure to liquid splashes, mists,
gases or dusts. If contact is possible, the following protection should be worn, unless
the assessment indicates a higher degree of protection: safety glasses with sideshields.
: Chemical-resistant, impervious gloves complying with an approved standard should be
worn at all times when handling chemical products if a risk assessment indicates this is
necessary. Considering the parameters specified by the glove manufacturer, check
during use that the gloves are still retaining their protective properties. It should be
noted that the time to breakthrough for any glove material may be different for different
glove manufacturers. In the case of mixtures, consisting of several substances, the
protection time of the gloves cannot be accurately estimated.
: Personal protective equipment for the body should be selected based on the task being
performed and the risks involved and should be approved by a specialist before
handling this product. When there is a risk of ignition from static electricity, wear antistatic protective clothing. For the greatest protection from static discharges, clothing
should include anti-static overalls, boots and gloves.
: Appropriate footwear and any additional skin protection measures should be selected
based on the task being performed and the risks involved and should be approved by a
specialist before handling this product.
: Use a properly fitted, air-purifying or air-fed respirator complying with an approved
standard if a risk assessment indicates this is necessary. Respirator selection must be
based on known or anticipated exposure levels, the hazards of the product and the safe
working limits of the selected respirator.
Section 9. Physical and chemical properties
Appearance
Physical state
: Gas.
Color
: Colorless.
Molecular weight
: 26.04 g/mole
Molecular formula
: C2-H2
Melting/freezing point
: -81°C (-113.8°F)
Critical temperature
: 35.25°C (95.5°F)
Odor
: Mild. Ethereal.
: Not available.
Odor threshold
pH
Flash point
: Not available.
: Closed cup: -18.15°C (-0.67°F)
Burning time
: Not applicable.
Burning rate
: Not applicable.
Date of issue/Date of revision
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
5/12
Acetylene
Section 9. Physical and chemical properties
Evaporation rate
: Not available.
Flammability (solid, gas)
Lower and upper explosive
(flammable) limits
: Extremely flammable in the presence of the following materials or conditions: open
flames, sparks and static discharge, heat and oxidizing materials.
: Lower: 2.3%
Upper: 100%
Vapor pressure
: 635 (psig)
Vapor density
: 0.907 (Air = 1)
3
Specific Volume (ft /lb)
: 14.7058
Gas Density (lb/ft 3)
: 0.0691
Relative density
: Not applicable.
Solubility
: Not available.
Solubility in water
: 1.2 g/l
Partition coefficient: noctanol/water
: 0.37
Auto-ignition temperature
: 305°C (581°F)
Decomposition temperature
: Not available.
SADT
: Not available.
Viscosity
: Not applicable.
Section 10. Stability and reactivity
Reactivity
: No specific test data related to reactivity available for this product or its ingredients.
Chemical stability
: The product is stable.
Possibility of hazardous
reactions
: Under normal conditions of storage and use, hazardous reactions will not occur.
Conditions to avoid
: Avoid all possible sources of ignition (spark or flame). Do not pressurize, cut, weld,
braze, solder, drill, grind or expose containers to heat or sources of ignition.
Incompatibility with various
substances
: Extremely reactive or incompatible with the following materials: oxidizing materials.
Hazardous decomposition
products
: Under normal conditions of storage and use, hazardous decomposition products should
not be produced.
Hazardous polymerization
: Under normal conditions of storage and use, hazardous polymerization will not occur.
Section 11. Toxicological information
Information on toxicological effects
Acute toxicity
Not available.
Irritation/Corrosion
Not available.
Sensitization
Date of issue/Date of revision
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
6/12
Acetylene
Section 11. Toxicological information
Not available.
Mutagenicity
Not available.
Carcinogenicity
Not available.
Reproductive toxicity
Not available.
Teratogenicity
Not available.
Specific target organ toxicity (single exposure)
Not available.
Specific target organ toxicity (repeated exposure)
Not available.
Aspiration hazard
Not available.
Information on the likely
routes of exposure
: Not available.
Potential acute health effects
Eye contact
: Contact with rapidly expanding gas may cause burns or frostbite.
Inhalation
: No known significant effects or critical hazards.
Skin contact
: Contact with rapidly expanding gas may cause burns or frostbite.
Ingestion
: As this product is a gas, refer to the inhalation section.
Symptoms related to the physical, chemical and toxicological characteristics
Eye contact
: No specific data.
Inhalation
: No specific data.
Skin contact
: No specific data.
Ingestion
: No specific data.
Delayed and immediate effects and also chronic effects from short and long term exposure
Short term exposure
Potential immediate
: Not available.
effects
Potential delayed effects
Long term exposure
Potential immediate
effects
Potential delayed effects
: Not available.
: Not available.
: Not available.
Potential chronic health effects
Not available.
General
: No known significant effects or critical hazards.
Carcinogenicity
: No known significant effects or critical hazards.
Date of issue/Date of revision
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
7/12
Acetylene
Section 11. Toxicological information
Mutagenicity
: No known significant effects or critical hazards.
Teratogenicity
: No known significant effects or critical hazards.
Developmental effects
: No known significant effects or critical hazards.
Fertility effects
: No known significant effects or critical hazards.
Numerical measures of toxicity
Acute toxicity estimates
Not available.
Section 12. Ecological information
Toxicity
Not available.
Persistence and degradability
Not available.
Bioaccumulative potential
Product/ingredient name
LogPow
BCF
Potential
acetylene
0.37
-
low
Mobility in soil
Soil/water partition
coefficient (KOC)
Other adverse effects
: Not available.
: No known significant effects or critical hazards.
Section 13. Disposal considerations
Disposal methods
Date of issue/Date of revision
: The generation of waste should be avoided or minimized wherever possible. Disposal
of this product, solutions and any by-products should at all times comply with the
requirements of environmental protection and waste disposal legislation and any
regional local authority requirements. Dispose of surplus and non-recyclable products
via a licensed waste disposal contractor. Waste should not be disposed of untreated to
the sewer unless fully compliant with the requirements of all authorities with jurisdiction.
Empty Airgas-owned pressure vessels should be returned to Airgas. Waste packaging
should be recycled. Incineration or landfill should only be considered when recycling is
not feasible. This material and its container must be disposed of in a safe way. Empty
containers or liners may retain some product residues. Do not puncture or incinerate
container.
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
8/12
Acetylene
Section 14. Transport information
DOT
TDG
Mexico
IMDG
IATA
UN number
UN1001
UN1001
UN1001
UN1001
UN1001
UN proper
shipping name
ACETYLENE,
DISSOLVED
ACETYLENE,
DISSOLVED
ACETYLENE,
DISSOLVED
ACETYLENE,
DISSOLVED
ACETYLENE,
DISSOLVED
Transport
2.1
hazard class(es)
2.1
2.1
2.1
2.1
Packing group
-
-
-
-
-
Environment
No.
No.
No.
No.
No.
Additional
information
Limited quantity
Yes.
Explosive Limit and
Limited Quantity Index
0
-
Passenger and Cargo
AircraftQuantity
limitation: 0 Forbidden
Cargo Aircraft Only
Quantity limitation: 15
kg
Packaging instruction
Passenger aircraft
Quantity limitation:
Forbidden.
Cargo aircraft
Quantity limitation: 15
kg
Passenger Carrying
Ship Index
75
Passenger Carrying
Road or Rail Index
Forbidden
Special provisions
38, 42
“Refer to CFR 49 (or authority having jurisdiction) to determine the information required for shipment of the
product.”
Special precautions for user : Transport within user’s premises: always transport in closed containers that are
upright and secure. Ensure that persons transporting the product know what to do in the
event of an accident or spillage.
Transport in bulk according
to Annex II of MARPOL
73/78 and the IBC Code
: Not available.
Section 15. Regulatory information
U.S. Federal regulations
: TSCA 8(a) CDR Exempt/Partial exemption: Not determined
United States inventory (TSCA 8b): This material is listed or exempted.
Clean Air Act (CAA) 112 regulated flammable substances: acetylene
Clean Air Act Section 112
(b) Hazardous Air
Pollutants (HAPs)
: Not listed
Clean Air Act Section 602
Class I Substances
: Not listed
Clean Air Act Section 602
Class II Substances
: Not listed
DEA List I Chemicals
(Precursor Chemicals)
: Not listed
DEA List II Chemicals
(Essential Chemicals)
: Not listed
Date of issue/Date of revision
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
9/12
Acetylene
Section 15. Regulatory information
SARA 302/304
Composition/information on ingredients
No products were found.
SARA 304 RQ
: Not applicable.
SARA 311/312
Classification
: Fire hazard
Sudden release of pressure
Composition/information on ingredients
Name
%
Fire
Sudden
hazard release of
pressure
Reactive
Immediate
(acute)
health
hazard
Delayed
(chronic)
health
hazard
acetylene
100
Yes.
No.
No.
No.
Yes.
State regulations
Massachusetts
: This material is listed.
New York
: This material is not listed.
New Jersey
: This material is listed.
Pennsylvania
: This material is listed.
Canada inventory
: This material is listed or exempted.
International regulations
International lists
Chemical Weapons
Convention List Schedule
I Chemicals
: Australia inventory (AICS): This material is listed or exempted.
China inventory (IECSC): This material is listed or exempted.
Japan inventory: This material is listed or exempted.
Korea inventory: This material is listed or exempted.
Malaysia Inventory (EHS Register): Not determined.
New Zealand Inventory of Chemicals (NZIoC): This material is listed or exempted.
Philippines inventory (PICCS): This material is listed or exempted.
Taiwan inventory (CSNN): Not determined.
: Not listed
Chemical Weapons
Convention List Schedule
II Chemicals
: Not listed
Chemical Weapons
Convention List Schedule
III Chemicals
: Not listed
Canada
WHMIS (Canada)
Date of issue/Date of revision
: Class A: Compressed gas.
Class B-1: Flammable gas.
Class F: Dangerously reactive material.
CEPA Toxic substances: This material is not listed.
Canadian ARET: This material is not listed.
Canadian NPRI: This material is listed.
Alberta Designated Substances: This material is not listed.
Ontario Designated Substances: This material is not listed.
Quebec Designated Substances: This material is not listed.
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
10/12
Acetylene
Section 16. Other information
Canada Label requirements
: Class A: Compressed gas.
Class B-1: Flammable gas.
Class F: Dangerously reactive material.
Hazardous Material Information System (U.S.A.)
Health
1
Flammability
4
Physical hazards
2
Caution: HMIS® ratings are based on a 0-4 rating scale, with 0 representing minimal hazards or risks, and 4
representing significant hazards or risks Although HMIS® ratings are not required on SDSs under 29 CFR 1910.
1200, the preparer may choose to provide them. HMIS® ratings are to be used with a fully implemented HMIS®
program. HMIS® is a registered mark of the National Paint & Coatings Association (NPCA). HMIS® materials
may be purchased exclusively from J. J. Keller (800) 327-6868.
The customer is responsible for determining the PPE code for this material.
National Fire Protection Association (U.S.A.)
Flammability
4
Health
0
3
Instability/Reactivity
Special
Note: The instability hazard rating for acetylene, dissolved (stabilized acetylene) is 2.
Reprinted with permission from NFPA 704-2001, Identification of the Hazards of Materials for Emergency
Response Copyright ©1997, National Fire Protection Association, Quincy, MA 02269. This reprinted material is
not the complete and official position of the National Fire Protection Association, on the referenced subject
which is represented only by the standard in its entirety.
Copyright ©2001, National Fire Protection Association, Quincy, MA 02269. This warning system is intended to
be interpreted and applied only by properly trained individuals to identify fire, health and reactivity hazards of
chemicals. The user is referred to certain limited number of chemicals with recommended classifications in
NFPA 49 and NFPA 325, which would be used as a guideline only. Whether the chemicals are classified by NFPA
or not, anyone using the 704 systems to classify chemicals does so at their own risk.
History
Date of printing
: 4/26/2015.
Date of issue/Date of
revision
Date of previous issue
: 4/26/2015.
Version
: 0.04
Key to abbreviations
Date of issue/Date of revision
: 10/14/2014.
: ATE = Acute Toxicity Estimate
BCF = Bioconcentration Factor
GHS = Globally Harmonized System of Classification and Labelling of Chemicals
IATA = International Air Transport Association
IBC = Intermediate Bulk Container
IMDG = International Maritime Dangerous Goods
LogPow = logarithm of the octanol/water partition coefficient
MARPOL 73/78 = International Convention for the Prevention of Pollution From Ships,
1973 as modified by the Protocol of 1978. ("Marpol" = marine pollution)
UN = United NationsACGIH – American Conference of Governmental Industrial
Hygienists
AIHA – American Industrial Hygiene Association
CAS – Chemical Abstract Services
CEPA – Canadian Environmental Protection Act
CERCLA – Comprehensive Environmental Response, Compensation, and Liability Act
(EPA)
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
11/12
Acetylene
Section 16. Other information
References
CFR – United States Code of Federal Regulations
CPR – Controlled Products Regulations
DSL – Domestic Substances List
GWP – Global Warming Potential
IARC – International Agency for Research on Cancer
ICAO – International Civil Aviation Organisation
Inh – Inhalation
LC – Lethal concentration
LD – Lethal dosage
NDSL – Non-Domestic Substances List
NIOSH – National Institute for Occupational Safety and Health
TDG – Canadian Transportation of Dangerous Goods Act and Regulations
TLV – Threshold Limit Value
TSCA – Toxic Substances Control Act
WEEL – Workplace Environmental Exposure Level
WHMIS – Canadian Workplace Hazardous Material Information System
: Not available.
Indicates information that has changed from previously issued version.
Notice to reader
To the best of our knowledge, the information contained herein is accurate. However, neither the above-named
supplier, nor any of its subsidiaries, assumes any liability whatsoever for the accuracy or completeness of the
information contained herein.
Final determination of suitability of any material is the sole responsibility of the user. All materials may present
unknown hazards and should be used with caution. Although certain hazards are described herein, we cannot
guarantee that these are the only hazards that exist.
Date of issue/Date of revision
: 4/26/2015.
Date of previous issue
: 10/14/2014.
Version
: 0.04
Powered by IHS
12/12
GAS DISSOLVED IN
ACETONE
NFPA RATING
FLAMMABILITY
4
HEALTH
3
0
REACTIVITY
MATERIAL SAFETY DATA SHEET
Prepared to U.S. OSHA, CMA, ANSI and Canadian WHMIS Standards
OTHER
PART I
What is the material and what do I need to know in an emergency?
1. PRODUCT IDENTIFICATION
ACETYLENE - C2H2
CHEMICAL NAME; CLASS:
PRODUCT USE:
SUPPLIER/MANUFACTURER'S NAME:
ADDRESS:
BUSINESS PHONE:
EMERGENCY PHONE:
DATE OF PREPARATION:
REVISION DATE:
Document Number: 001001
For welding, cutting, and general
analytical/synthetic chemical uses.
AIRGAS INC.
259 N. Radnor-Chester Road
Suite 100
Radnor, PA 19087-5283
1-610-687-5253
1-800-949-7937
International: 423-479-0293 (Call Collect)
May 20, 1996
September 10, 2003
2. COMPOSITION and INFORMATION ON INGREDIENTS
CHEMICAL NAME
Acetylene
CAS #
74-86-2
Maximum Impurities
mole %
> 99
EXPOSURE LIMITS IN AIR
ACGIH-TLV
OSHA-PEL
NIOSH
TWA
STEL
TWA
STEL
IDLH
ppm
ppm
ppm
ppm
ppm
Acetylene is a simple asphyxiant (SA). Oxygen levels
should be maintained above 19.5%.
OTHER
ppm
NIOSH REL:
STEL = 2500 (ceiling)
Matheson maximum
recommended limit for
exposure: 5000 ppm
<1
None of the trace impurities in this mixture contribute significantly to the hazards associated
with the product. All hazard information pertinent to this product has been provided in this
Material Safety Data Sheet, per the requirements of the OSHA Hazard Communication
Standard (29 CFR 1910.1200) and State equivalent standards.
NE = Not Established.
See Section 16 for Definitions of Terms Used.
NOTE (1): ALL WHMIS required information is included in appropriate sections based on the ANSI Z400.1-1998 format. This gas has been
classified in accordance with the hazard criteria of the CPR and the MSDS contains all the information required by the CPR.
3. HAZARD IDENTIFICATION
EMERGENCY OVERVIEW: Acetylene is a colorless, flammable gas, with a garlic-like odor, that is dissolved in
acetone. The main health hazard associated with a release of this gas is asphyxiation by displacement of
oxygen. Acetylene gas poses an extreme fire hazard when accidentally released. The gas is lighter than air, and
may spread long distances. Distant ignition and flashback are possible. Flame or high temperature impinging on
a localized area of the cylinder of this product can cause the cylinder to explode without activating the cylinder’s
relief devices. Acetylene gas may decompose explosively at elevated temperatures and pressures. Acetylene
can form very explosive metallic salts (such as with copper, mercury, and silver). Provide adequate fire protection
during emergency response situations.
ACETYLENE - C2H2 MSDS (Document # 001001)
PAGE 1 OF 10
3. HAZARD IDENTIFICATION (Continued)
SYMPTOMS OF OVEREXPOSURE BY ROUTE OF EXPOSURE:
HAZARDOUS MATERIAL IDENTIFICATION SYSTEM
The most significant route of overexposure for this gas is by
inhalation.
The following paragraphs describe symptoms of
exposure by route of exposure.
(BLUE)
HEALTH HAZARD
1
INHALATION: At concentration below the LEL of 2.5% (25,000
ppm) this gas is essentially non-toxic. At higher concentrations,
Acetylene has anesthetic effects. Symptoms of overexposure to
such high concentrations may include drowsiness, dizziness, and a
FLAMMABILITY HAZARD (RED) 4
general feeling of weakness. Intentional inhalation of Acetylene
has resulted in depressed consciousness, metabolic acidosis,
hyperglycemia, ketonuria, and elevated creatinine levels.
High concentrations of this gas can cause an oxygen-deficient
(YELLOW)
PHYSICAL HAZARD
environment. Individuals breathing such an atmosphere may
3
experience symptoms which include headaches, ringing in ears,
dizziness, drowsiness, unconsciousness, nausea, vomiting, and
depression of all the senses. The skin of a victim of overexposure
PROTECTIVE EQUIPMENT
may have a blue color.
Under some circumstances of
overexposure, death may occur. The following effects associated
EYES
HANDS
BODY
RESPIRATORY
with various levels of oxygen are as follows:
SYMPTOMS OF EXPOSURE
CONCENTRATION
12-16% Oxygen:
Breathing and pulse rate increased,
See
See
muscular coordination slightly disturbed.
Section 8
Section 8
10-14% Oxygen:
Emotional upset, abnormal fatigue,
For Routine Industrial Use and Handling Applications
disturbed respiration.
6-10% Oxygen:
Nausea and vomiting, collapse or loss of
See Section 16 for Definition of Ratings
consciousness.
Below 6%:
Convulsive movements, possible respiratory collapse, and death.
When administered with oxygen at concentrations of 10% or greater, Acetylene produces varying degrees of
temporary narcosis.
OTHER POTENTIAL HEALTH EFFECTS: The gas is generally non-irritating to the skin and eyes. Acetylene is
dissolved in acetone. Any skin or eye contact with the acetone component of this product may be slightly irritating to
contaminated skin or eyes.
HEALTH EFFECTS OR RISKS FROM EXPOSURE: An Explanation in Lay Terms. Overexposure to Acetylene may
cause the following health effects:
ACUTE: The most significant hazard associated with Acetylene is inhalation of oxygen-deficient atmospheres.
Symptoms of oxygen deficiency include respiratory difficulty, ringing in ears, headaches, shortness of breath,
wheezing, headache, dizziness, indigestion, and nausea. At high concentrations, unconsciousness or death may
occur.
CHRONIC: Chronic exposure to oxygen-deficient atmospheres (below 18% oxygen in air) may affect the heart and
nervous system. Refer to Section 11 (Toxicology Information) for more detailed information.
TARGET ORGANS: ACUTE: Respiratory system, central nervous system. CHRONIC: Skin, heart, central
nervous system.
PART II
What should I do if a hazardous situation occurs?
4. FIRST-AID MEASURES
RESCUERS SHOULD NOT ATTEMPT TO RETRIEVE VICTIMS OF EXPOSURE TO THIS PRODUCT WITHOUT
ADEQUATE PERSONAL PROTECTIVE EQUIPMENT. At a minimum, Self-Contained Breathing Apparatus
and Fire-Retardant equipment should be worn. Adequate fire protection must be provided during rescue
situations. NOTE: Acetylene releases which have not spontaneously ignited must be considered
extremely dangerous, and should not be approached!
Remove victim(s) to fresh air, as quickly as possible. Only trained personnel should administer supplemental
oxygen and/or cardio-pulmonary resuscitation, if necessary. Victim(s) must be taken for medical attention.
Rescuers should be taken for medical attention, if necessary. Take copy of label and MSDS to physician or other
health professional with victim(s).
SKIN EXPOSURE: If the Acetone carrier contaminates the skin, immediately begin decontamination with running
water. Minimum flushing is for 15 minutes. Remove exposed or contaminated clothing, taking care not to
contaminate eyes. Victim must seek medical attention if irritation persists, or if there are other adverse health
effects.
ACETYLENE - C2H2 MSDS (Document # 001001)
PAGE 2 OF 10
4. FIRST-AID MEASURES (Continued)
EYE EXPOSURE: If this gas contaminates the eyes, immediately begin decontamination with running water, open
victim's eyes while under gently running water. Use sufficient force to open eyelids. Have victim "roll" eyes.
Minimum flushing is for 15 minutes. Victim must seek medical attention.
THERMAL BURNS: In the event personnel are burned as a result of an Acetylene release, trained personnel should
provide first aid treatment. Get medical attention immediately.
MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE: Acute or chronic respiratory conditions may be
aggravated by overexposure to Acetylene, due to the presence of the acetone carrier.
RECOMMENDATIONS TO PHYSICIANS: Administer oxygen, if necessary. Treat symptoms and eliminate
exposure.
5. FIRE-FIGHTING MEASURES
FLASH POINT (Closed Cup): 0°C (32°F)
GAS DISSOLVED IN
AUTOIGNITION TEMPERATURE: 305°C (581°F)
ACETONE
FLAMMABLE LIMITS (in air by volume, %):
Lower (LEL): 2.5%
Upper (UEL): 82%
NFPA RATING
100% with substantial energy source and under certain
FLAMMABILITY
conditions of pressure, container size and shape.
FIRE EXTINGUISHING MATERIALS: Extinguish fires of this gas by
4
shutting-off the source of the gas. Use water spray to cool fire-exposed
structures and equipment.
3
0
HEALTH
REACTIVITY
UNUSUAL FIRE AND EXPLOSION HAZARDS: When involved in a
fire, this material ignites to produce toxic gases including carbon
monoxide and carbon dioxide. Acetylene gas is extremely flammable
and can readily form explosive mixtures with air over a very wide range.
OTHER
An explosion hazard exists in confined spaces when the gas is
released. Pure Acetylene can explode under certain conditions of
elevated pressure, temperature and container size. Acetylene reacts
See Section 16 for
with active metals to form explosive acetylide compounds.
Definition of Ratings
DANGER! Fires impinging (direct flame) on the outside surface of
cylinders or storage vessels can be very dangerous. Direct flame exposure on the cylinder wall can cause an
explosion by exothermic decomposition. The resulting fire and explosion can result in severe equipment damage
and personnel injury or death over a large area around the vessel. For massive fires in large areas, use unmanned
hose holder or monitor nozzles; if this is not possible, withdraw from area and allow fire to burn.
Explosion Sensitivity to Mechanical Impact: Not Sensitive.
Explosion Sensitivity to Static Discharge: Static discharge may cause this gas to ignite explosively.
SPECIAL FIRE-FIGHTING PROCEDURES: The best fire-fighting technique may be simply to let the burning gas
escape from the pressurized cylinder, tank car, or pipeline. Stop the leak before extinguishing fire. If the fire is
extinguished before the leak is sealed, the still-leaking gas could explosively re-ignite without warning and cause
extensive damage, injury, or fatality. In this case, increase ventilation (in enclosed areas) to prevent flammable or
explosive mixture formation. Structural fire-fighters must wear Self-Contained Breathing Apparatus and full
protective equipment. Because of the potential for explosive rupture of cylinders of Acetylene, evacuation of nonemergency personnel is essential. Because of possible internal decomposition of Acetylene if cylinders are exposed
to heat during a fire, exposed cylinders must be cooled with a water spray for an extended period to prevent possible
cylinder rupture. If water is not available for cooling or protection of vessel exposures, evacuate the area. Refer to
the North American Emergency Response Guidebook (Guide #116).
6. ACCIDENTAL RELEASE MEASURES
SPILL AND LEAK RESPONSE: Uncontrolled releases should be responded to by trained personnel using
pre-planned procedures. Proper protective equipment should be used. In case of a release, clear the affected area
and protect people. Adequate fire protection must be provided. Minimum Personal Protective Equipment should be
Level B: fire-retardant protective clothing, mechanically-resistant gloves and Self-Contained Breathing
Apparatus. Use only non-sparking tools and equipment. Locate and seal the source of the leaking gas. Protect
personnel attempting the shut-off with water-spray. Allow the gas to dissipate. Monitor the surrounding area for
oxygen and combustible gas levels. Combustible gas concentration must be below 10% of the LEL (LEL = 2.5%)
prior to entry of any response personnel. The atmosphere must have at least 19.5 percent oxygen before personnel
can be allowed in the area without Self-Contained Breathing Apparatus. Attempt to close the main source valve prior
to entering the area. If this does not stop the release (or if it is not possible to reach the valve), allow the gas to
release in-place or remove it to a safe area and allow the gas to be released there.
THIS IS AN EXTREMELY FLAMMABLE GAS. Protection of all personnel and the area must be maintained.
ACETYLENE - C2H2 MSDS (Document # 001001)
PAGE 3 OF 10
PART III
How can I prevent hazardous situation from occurring?
7. HANDLING and STORAGE
WORK PRACTICES AND HYGIENE PRACTICES: As with all chemicals, avoid getting Acetylene IN YOU. Do not
eat or drink while handling chemicals. Be aware of any signs of dizziness or fatigue; exposures to fatal
concentrations of Acetylene could occur without any significant warning symptoms.
STORAGE AND HANDLING PRACTICES: Cylinders should be stored in dry, well-ventilated areas away from
sources of heat. Compressed gases can present significant safety hazards. Store containers away from heavily
trafficked areas and emergency exits. Post “No Smoking or Open Flames” signs in storage or use areas. Avoid
storage for over six months and keep the smallest amount necessary on-site at any one-time. In the United States,
from NFPA 51, cylinders of Acetylene stored inside buildings at the locations of use, must be limited to a total
capacity of 2500 ft3 (70m3). In Canada, the limit is for a total capacity of 2160 ft3 (60 m3) in non-sprinklered buildings
and 6130 ft3 (170 m3) in building with sprinkler systems. After these quantities are exceeded, a special room must
be built for the storage of Acetylene. Consider installation of leak detection and alarm for storage area. Cylinders
should be stored upright and be firmly secured to prevent falling or being knocked over. This will prevent acetone
from being released from the cylinder. Cylinders can be stored in the open, but in such cases, should be protected
against extremes of weather and from the dampness of the ground to prevent rusting.
Use non-sparking ventilation systems, approved explosion-proof equipment, and appropriate electrical systems.
Keep the quantity stored as small as possible. Store away from process and production areas, away from elevators,
building and room exits or main aisles leading to exits. Keep storage area clear of materials which can burn. Have
appropriate extinguishing equipment in the storage area (e.g., sprinkler system, portable fire extinguishers).
It is important to note that Acetylene, in its free state, under pressure, may decompose violently. The higher the
pressure, the smaller the initial force necessary to cause a reaction. Therefore, never use the free gas outside the
cylinder at pressures in excess of 15 psig. If pressures exceeding this limit are utilized, special explosion and fire
safety precautions must be implemented.
SPECIAL PRECAUTIONS FOR HANDLING GAS CYLINDERS: Protect cylinders against physical damage. Store
in cool, dry, well-ventilated area, away from sources of heat, ignition and direct sunlight. Do not allow area where
cylinders are stored to exceed 52°C (125°F). Isolate from halogens and oxidizers such as oxygen, chlorine, or
fluorine. Use a check valve or trap in the discharge line to prevent hazardous backflow. Never tamper with pressure
relief devices in valves and cylinders. Electrical equipment should be non-sparking or explosion proof. The following
rules are applicable to work situations in which cylinders are being used:
Before Use: Move cylinders with a suitable hand-truck. Do not drag, slide or roll cylinders. Do not drop cylinders or
permit them to strike each other. Secure cylinders firmly. Leave the valve protection cap (where provided) in-place
until cylinder is ready for use.
During Use: Use designated CGA fittings and other support equipment. Do not use adapters. Do not heat cylinder
by any means to increase the discharge rate of the product from the cylinder. Use check valve or trap in discharge
line to prevent hazardous backflow into the cylinder. Do not use oils or grease on gas-handling fittings or equipment.
After Use: Close main cylinder valve. Valves should be closed tightly, to prevent evaporation of acetone. Replace
valve protection cap. Mark empty cylinders “EMPTY”.
NOTE: Use only DOT or ASME code containers designed for acetylene storage. Earth-ground and bond all lines
and equipment associated with this product. Close valve after each use and when empty. Cylinders must not be
recharged except by or with the consent of owner. For additional information refer to the Compressed Gas
Association Pamphlet P-1, Safe Handling of Compressed Gases in Containers. Additionally, refer to CGA Bulletin
SB-2 “Oxygen Deficient Atmospheres” and NFPA Bulletin 58.
For welding and brazing operations, refer to ANSI Z-49.1 “Safety in Welding and Cutting” and OSHA safety
regulations for welding, cutting, and brazing (29 CFR 1910.252).
PROTECTIVE PRACTICES DURING MAINTENANCE OF CONTAMINATED EQUIPMENT: Follow practices
indicated in Section 6 (Accidental Release Measures). Make certain application equipment is locked and tagged-out
safely. Purge gas handling equipment with inert gas (e.g., nitrogen) before attempting repairs.
8. EXPOSURE CONTROLS - PERSONAL PROTECTION
VENTILATION AND ENGINEERING CONTROLS: Use with adequate ventilation to ensure oxygen levels are above
19.5% in the work area. Local exhaust ventilation is preferred, because it prevents Acetylene dispersion into the
work place by eliminating it at its source. If appropriate, install automatic monitoring equipment to detect the level of
oxygen and the presence of potentially explosive air-gas mixtures.
RESPIRATORY PROTECTION: Maintain oxygen levels above 19.5% in the workplace. If respiratory protection is
needed, use only protection authorized in the U.S. Federal OSHA Standard (29 CFR 1910.134), applicable U.S.
State regulations, or the Canadian CSA Standard Z94.4-93 and applicable standards of Canadian Provinces.
Oxygen levels below 19.5% are considered IDLH by OSHA. In such atmospheres, use of a full-facepiece
pressure/demand SCBA or a full facepiece, supplied air respirator with auxiliary self-contained air supply is required
under OSHA’s Respiratory Protection Standard (1910.134-1998).
ACETYLENE - C2H2 MSDS (Document # 001001)
PAGE 4 OF 10
8. EXPOSURE CONTROLS - PERSONAL PROTECTION (Continued)
EYE PROTECTION: Splash goggles or safety glasses, for protection from rapidly expanding gases and splashes of
the Acetone. If necessary, refer to U.S. OSHA 29 CFR 1910.133, or Canadian Standards.
HAND PROTECTION: Wear mechanically-resistant gloves when handling cylinders of this gas. Wear chemicallyresistant gloves when using this gas mixture to avoid exposure to Acetone. Neoprene gloves are recommended. If
necessary, refer to U.S. OSHA 29 CFR 1910.138 or appropriate Standards of Canada.
BODY PROTECTION: Use body protection appropriate for task. Fire retardant clothing may be appropriate under
some circumstances of use. Cotton clothing is recommended to prevent static build-up and discharge. If a hazard
of injury to the feet exists due to falling objects, rolling objects, where objects may pierce the soles of the feet or
where employee’s feet may be exposed to electrical hazards, use foot protection, as described in U.S. OSHA 29
CFR.
9. PHYSICAL and CHEMICAL PROPERTIES
VAPOR DENSITY (@ 0°C): 1.1716 kg/m3 (0.073 lb/ft3)
pH: Not applicable.
SPECIFIC GRAVITY (air = 1): 0.906
.....
FREEZING POINT (@ 10 psig): -84°C (-119°F)
SOLUBILITY IN WATER @0°C (32°F) 1 atm: 1.7 vol/vol
BOILING POINT: -75°C (-103°F)
EVAPORATION RATE (nBuAc = 1): Not applicable.
EXPANSION RATIO: Not applicable.
ODOR THRESHOLD (Detection): 226 ppm .....
VAPOR PRESSURE (psig): 635
COEFFICIENT WATER/OIL DISTRIBUTION: Not applicable. SPECIFIC VOLUME (ft3/lb): 14.7
APPEARANCE AND COLOR: Colorless gas with a garlic-like, odor dissolved in acetone.
HOW TO DETECT THIS SUBSTANCE (warning properties): There are no distinct warning properties. In terms of
leak detection, fittings and joints can be painted with a soap solution to detect leaks, which will be indicated by a
bubble formation.
10. STABILITY and REACTIVITY
STABILITY: Acetylene is stable at standard temperatures and pressures. Gaseous acetylene may decompose
violently at elevated temperatures and pressures. Acetylene must not be used at pressures greater than 15 psig.
The higher the pressure, the more likely it is for a reaction to occur.
DECOMPOSITION PRODUCTS: Carbon and hydrogen. When ignited in the presence of oxygen, carbon monoxide
and carbon dioxide are formed.
MATERIALS WITH WHICH SUBSTANCE IS INCOMPATIBLE: Mixture with air containing between 3-82%
Acetylene is explosive. Contact with bleaching powder may lead to formation of explosive chloroacetylenes. Finely
divided cobalt metal decomposes and polymerizes Acetylene on contact, becoming incandescent. Copper metal
forms explosive compounds with Acetylene. If warmed in air or oxygen, or on impact, copper acetylides may
explode in subsequent contact with Acetylene. Interaction with halogens can be violent or explosive. Contact of
Acetylene with concentrated nitric acid in presence of mercury forms explosive trinitromethane or tetranitromethane if
sulfuric acid is subsequently added. Mixture with nitric oxide products will ignite at +30-50°C. Mixtures with oxygen
are very explosive even at very low oxygen concentrations ( < 2.5%). Molten potassium ignites in Acetylene, then
explodes. Silver forms explosive compounds with Acetylene. Interaction with trifluoromethyl hypofluorite, in absence
of nitrogen as diluent, is explosive on mixing. In addition, Acetylene is incompatible with mercury, mercuric salts, and
silver salts, oxidizing materials, chlorine, fluorine. Zinc, hydrides (e.g. sodium hydride, cesium hydride), ozone,
perchloric acid and potassium.
HAZARDOUS POLYMERIZATION: Can occur when heated or under pressure.
CONDITIONS TO AVOID: Contact with incompatible materials and exposure to heat, sparks and other sources of
ignition. Cylinders exposed to high temperatures or direct flame can rupture or burst. Liquid nitrogen should not be
used as a trap, as it may cause acetylene to condense to its liquid or solid state, both of which are explosive.
PART IV
Is there any other useful information about this material?
11. TOXICOLOGICAL INFORMATION
TOXICITY DATA: The following information is for Acetylene.
TCLo (Inhalation-Human) 20 pph: Behavioral: headache; Lungs, Thorax, or Respiration: dyspnea
LCLo (Inhalation-Human) 50 pph/5 minutes
LCLo (Inhalation-Mammal-Species Unspecified) 50 pph/5 minutes
Other data pertaining to the effects of Acetylene inhalation on humans are as follows:
Concentration
100,000 ppm
200,000 ppm
300,000 ppm
350,000 ppm
Symptom
Intoxication (drowsiness, dizziness, giddiness).
Severe intoxication.
Loss of coordination.
Unconsciousness after 5 minutes of exposure.
Effects on Short-Term Inhalation: Animals have shown tolerance to 10% Acetylene. In studies with dogs, cats, and rabbits, Acetylene acts as
an anesthetic at 20% exposure. Recovery occurs if the oxygen level is maintained. In an oxygen-deficient environment, death may occur after 510 minutes. Rodents exposed to 25, 50, and 80 percent Acetylene in oxygen for 1-2 hours daily (93 hours total exposure), evidenced no weight
change or cellular damage. Mixtures of 80% Acetylene/20% oxygen caused a rise in blood pressure in an exposed cat.
ACETYLENE - C2H2 MSDS (Document # 001001)
PAGE 5 OF 10
11. TOXICOLOGICAL INFORMATION (Continued)
SUSPECTED CANCER AGENT: Acetylene is not found on the following lists: FEDERAL OSHA Z LIST, NTP, IARC,
CAL/OSHA, and therefore is not considered to be, nor suspected to be a cancer-causing agent by these agencies.
IRRITANCY OF PRODUCT: Acetylene is not irritating; however, contact with the acetone component of Acetylene
can be slightly irritating to contaminated skin or eyes.
SENSITIZATION TO THE PRODUCT: Acetylene is not known to cause sensitization in humans.
REPRODUCTIVE TOXICITY INFORMATION: Listed below is information concerning the effects Acetylene on the
human reproductive system.
Mutagenicity: No mutagenicity effects have been described for Acetylene.
Embryotoxcity: No embryotoxic effects have been described for Acetylene.
Teratogenicity: No teratogenicity effects have been described for Acetylene.
Reproductive Toxicity: No reproductive toxicity effects have been described for Acetylene.
A mutagen is a chemical which causes permanent changes to genetic material (DNA) such that the changes will propagate
through generation lines. An embryotoxin is a chemical which causes damage to a developing embryo (i.e. within the first
eight weeks of pregnancy in humans), but the damage does not propagate across generational lines. A teratogen is a
chemical which causes damage to a developing fetus, but the damage does not propagate across generational lines. A
reproductive toxin is any substance which interferes in any way with the reproductive process.
BIOLOGICAL EXPOSURE INDICES (BEIs): Currently, Biological Exposure Indices (BEIs) are not applicable for this
gas.
12. ECOLOGICAL INFORMATION
ENVIRONMENTAL STABILITY: This gas will be dissipated rapidly in well-ventilated areas.
environmental data are available for this gas.
The following
ACETYLENE: Water Solubility = 100 vol./100 vol. at 18 EC. Acetylene is not expected to be harmful to aquatic life. Only moderately toxic to
fish. Volatility and low solubility suggest it would be rare for water to become critically polluted from accidental releases. Acetylene is
biodegraded through various plant and bacterial systems by inactivating atmospheric acetylene through their nitrogen- fixing mechanisms.
EFFECT OF MATERIAL ON PLANTS or ANIMALS: Any adverse effect on animals would be related to oxygen
deficient environments and the anesthetic properties of Acetylene at high concentrations of exposure. The following
data are available for effects on plant-life:
Sweet pea: declination in seedling: 250 ppm, 3 days
Tomato: Epinasty in petiole: 50 ppm, 2 days.
EFFECT OF CHEMICAL ON AQUATIC LIFE: The following aquatic toxicity data are available for Acetylene.
LC50 (river trout): 33 hours, 200 mg/L
13. DISPOSAL CONSIDERATIONS
PREPARING WASTES FOR DISPOSAL: Product removed from the cylinder must be disposed of in accordance
with appropriate U.S. Federal, State, and local regulations or with regulations of Canada and its Provinces. Return
cylinders with residual product to Airgas, Inc. Do not dispose of locally.
14. TRANSPORTATION INFORMATION
THIS GAS IS HAZARDOUS AS DEFINED BY 49 CFR 172.101 BY THE U.S. DEPARTMENT OF
TRANSPORTATION.
PROPER SHIPPING NAME:
Acetylene, dissolved
2.1 (Flammable Gas)
HAZARD CLASS NUMBER and DESCRIPTION:
UN IDENTIFICATION NUMBER:
UN 1001
PACKING GROUP:
Not Applicable
Flammable Gas
DOT LABEL(S) REQUIRED:
NORTH AMERICAN EMERGENCY RESPONSE GUIDEBOOK NUMBER (2000): 116
MARINE POLLUTANT: Acetylene is not classified by the DOT as a Marine Pollutant (as defined by 49 CFR
172.101, Appendix B).
TRANSPORT CANADA TRANSPORTATION OF DANGEROUS GOODS REGULATIONS: Acetylene is considered
as Dangerous Goods, per regulations of Transport Canada. The use of the above U.S. DOT information from the
U.S. 49 CFR regulations is allowed for shipments that originate in the U.S. For shipments via ground vehicle or rail
that originate in Canada, the following information is applicable.
PROPER SHIPPING NAME:
Acetylene, dissolved
HAZARD CLASS NUMBER and DESCRIPTION:
2.1 (Flammable Gas)
UN IDENTIFICATION NUMBER:
UN 1001
Not Applicable
PACKING GROUP:
HAZARD LABEL(S) REQUIRED:
Class 2.1 (Flammable Gas)
38, 42
SPECIAL PROVISIONS:
EXPLOSIVE LIMIT & LIMITED QUANTITY INDEX:
0
ERAP INDEX:
None
75
PASSENGER CARRYING SHIP INDEX:
PASSENGER CARRYING ROAD OR RAIL VEHICLE INDEX: Forbidden
MARINE POLLUTANT: Acetylene is not listed by Transport Canada as a Marine Pollutant.
ACETYLENE - C2H2 MSDS (Document # 001001)
PAGE 6 OF 10
15. REGULATORY INFORMATION
ADDITIONAL U.S. REGULATIONS:
U.S. SARA REPORTING REQUIREMENTS: Acetylene is not subject to the reporting requirements of Sections 302,
304, and 313 of Title III of the Superfund Amendments and Reauthorization Act.
U.S. SARA THRESHOLD PLANNING QUANTITY: There are no specific Threshold Planning Quantities for this
material. The default Federal MSDS submission and inventory requirement filing threshold of 10,000 lb (4,554 kg)
may apply, per 40 CFR 370.20.
U.S. CERCLA REPORTABLE QUANTITY (RQ): Not applicable.
U.S. TSCA INVENTORY STATUS: Acetylene is on the TSCA Inventory.
OTHER U.S. FEDERAL REGULATIONS: Acetylene is subject to the reporting requirements of Section 112(r) of the
Clean Air Act, unless used as a fuel. The Threshold Quantity for this gas is 10,000 lb (4554 kg). Depending on
specific operations involving the use of Acetylene, the regulations of the Process Safety Management of Highly
Hazardous Chemicals may be applicable (29 CFR 1910.119). Under this regulation Acetylene is not listed in
Appendix A, however, any process that involves a flammable gas on-site, in one location, in quantities of 10,000 lb
(4,554 kg) or greater is covered under this regulation unless it is used as a fuel.
U.S. STATE REGULATORY INFORMATION: Acetylene is covered under specific State regulations, as denoted
below:
Alaska - Designated Toxic and Hazardous
Substances: Acetylene.
California - Permissible Exposure Limits
for Chemical Contaminants: Acetylene.
Florida - Substance List: Acetylene.
Illinois - Toxic Substance List: Acetylene.
Kansas - Section 302/313 List: No.
Massachusetts
Substance
List:
Acetylene.
Michigan - Critical Materials Register: No.
Minnesota - List of Hazardous Substances:
Acetylene.
Missouri - Employer Information/Toxic
Substance List: Acetylene.
New Jersey - Right to Know Hazardous
Substance List: Acetylene.
North Dakota - List of Hazardous
Chemicals, Reportable Quantities: No.
Pennsylvania - Hazardous Substance List:
Acetylene.
Rhode Island - Hazardous Substance List:
Acetylene.
Texas - Hazardous Substance List: No.
West Virginia - Hazardous Substance List:
No.
Wisconsin - Toxic and Hazardous
Substances: No.
CALIFORNIA SAFE DRINKING WATER AND TOXIC ENFORCEMENT ACT (PROPOSITION 65): Acetylene is not
on the California Proposition 65 lists.
CGA LABELING (For Compressed Gas):
DANGER:
FLAMMABLE GAS UNDER PRESSURE.
CAN FORM EXPLOSIVE MIXTURES WITH AIR.
FUSIBLE PLUGS ON TOP, BOTTOM, OR VALVE MELT AT 212°F (100°C).
DO NOT DISCHARGE AT PRESSURES ABOVE 15 PSIG (103 kPa)
ODOR:
Garlic-like.
Keep away from heat, flames, and sparks.
Store and use width adequate ventilation.
Use equipment rated for cylinder pressure.
Close valve after each use and when empty.
Use in accordance with the Material Safety Data Sheet.
Cylinder contains acetone solvent, which may cause irritation.
NOTE:
DO NOT REMOVE THIS PRODUCT LABEL
ADDITIONAL CANADIAN REGULATIONS:
CANADIAN DSL INVENTORY: Acetylene listed on the DSL Inventory.
OTHER CANADIAN REGULATIONS: Not applicable.
CANADIAN ENVIRONMENTAL PROTECTION ACT (CEPA) PRIORITIES SUBSTANCES LISTS: Acetylene is not
on the CEPA Priorities Substances Lists.
Class A: Compressed Gas
CANADIAN WHMIS SYMBOLS:
Class B1: Flammable Gas
16. OTHER INFORMATION
PREPARED BY:
CHEMICAL SAFETY ASSOCIATES, Inc.
PO Box 3519, La Mesa, CA 91944-3519
619/670-0302
ACETYLENE - C2H2 MSDS (Document # 001001)
PAGE 7 OF 10
The information contained herein is based on data considered accurate. However, no warranty is expressed or implied regarding the
accuracy of these data or the results to be obtained from the use thereof. AIRGAS, Inc. assumes no responsibility for injury to the vendee or
third persons proximately caused by the material if reasonable safety procedures are not adhered to as stipulated in the data sheet.
Additionally, AIRGAS, Inc. assumes no responsibility for injury to vendee or third persons proximately caused by abnormal use of the material
even if reasonable safety procedures are followed. Furthermore, vendee assumes the risk in his use of the material.
DEFINITIONS OF TERMS
A large number of abbreviations and acronyms appear on a MSDS. Some of these which are commonly used include the following
CAS #: This is the Chemical Abstract Service Number that uniquely
identifies each constituent.
EXPOSURE LIMITS IN AIR:
CEILING LEVEL: The concentration that shall not be exceeded during
any part of the working exposure.
LOQ: Limit of Quantitation.
MAK: Federal Republic of Germany Maximum Concentration Values
in the workplace.
NE: Not Established. When no exposure guidelines are established,
an entry of NE is made for reference.
NIC: Notice of Intended Change.
NIOSH CEILING: The exposure that shall not be exceeded during any
part of the workday. If instantaneous monitoring is not feasible, the
ceiling shall be assumed as a 15-minute TWA exposure (unless
otherwise specified) that shall not be exceeded at any time during a
workday.
NIOSH RELs: NIOSH’s Recommended Exposure Limits.
PEL-Permissible Exposure Limit: OSHA’s Permissible Exposure
Limits. This exposure value means exactly the same as a TLV, except
that it is enforceable by OSHA. The OSHA Permissible Exposure
Limits are based in the 1989 PELs and the June, 1993 Air
Contaminants Rule (Federal Register: 58: 35338-35351 and 58:
40191). Both the current PELs and the vacated PELs are indicated.
The phrase, “Vacated 1989 PEL,” is placed next to the PEL that was
vacated by Court Order.
SKIN: Used when a there is a danger of cutaneous absorption.
STEL-Short Term Exposure Limit: Short Term Exposure Limit,
usually a 15-minute time-weighted average (TWA) exposure that
should not be exceeded at any time during a workday, even if the 8-hr
TWA is within the TLV-TWA, PEL-TWA or REL-TWA.
TLV-Threshold Limit Value:
An airborne concentration of a
substance that represents conditions under which it is generally
believed that nearly all workers may be repeatedly exposed without
adverse effect. The duration must be considered, including the 8-hour.
TWA-Time Weighted Average: Time Weighted Average exposure
concentration for a conventional 8-hr (TLV, PEL) or up to a 10-hr (REL)
workday and a 40-hr workweek.
IDLH-Immediately Dangerous to Life and Health: This level
represents a concentration from which one can escape within 30minutes without suffering escape-preventing or permanent injury.
HAZARDOUS MATERIALS IDENTIFICATION SYSTEM
HAZARD RATINGS: This rating system was developed by the
National Paint and Coating Association and has been adopted by
industry to identify the degree of chemical hazards.
HEALTH HAZARD:
0 (Minimal Hazard: No significant health risk, irritation of skin or eyes
not anticipated. Skin Irritation: Essentially non-irritating. PII or Draize
= “0”. Eye Irritation: Essentially non-irritating, or minimal effects which
clear in < 24 hours [e.g. mechanical irritation]. Draize = “0”. Oral
Toxicity LD50 Rat: < 5000 mg/kg. Dermal Toxicity LD50Rat or Rabbit: <
2000 mg/kg. Inhalation Toxicity 4-hrs LC50 Rat: < 20 mg/L.); 1 (Slight
Hazard: Minor reversible Injury may occur; slightly or mildly irritating.
Skin Irritation: Slightly or mildly irritating. Eye Irritation: Slightly or
mildly irritating. Oral Toxicity LD50 Rat: > 500-5000 mg/kg. Dermal
Toxicity LD50Rat or Rabbit: > 1000-2000 mg/kg. Inhalation Toxicity
LC50 4-hrs Rat: > 2-20 mg/L); 2 (Moderate Hazard: Temporary or
transitory injury may occur. Skin Irritation: Moderately irritating; primary
irritant; sensitizer. PII or Draize > 0, < 5. Eye Irritation: Moderately to
severely irritating and/or corrosive; reversible corneal opacity; corneal
involvement or irritation clearing in 8-21 days. Draize > 0, < 25. Oral
Toxicity LD50 Rat: > 50-500 mg/kg. Dermal Toxicity LD50Rat or Rabbit:
> 200-1000 mg/kg. Inhalation Toxicity LC50 4-hrs Rat: > 0.5-2 mg/L.);
ACETYLENE - C2H2 MSDS (Document # 001001)
HAZARDOUS MATERIALS IDENTIFICATION
HAZARD RATINGS (continued):
SYSTEM
HEALTH HAZARD (continued):
3 (Serious Hazard: Major injury likely unless prompt action is taken
and medical treatment is given; high level of toxicity; corrosive. Skin
Irritation: Severely irritating and/or corrosive; may destroy dermal
tissue, cause skin burns, dermal necrosis. PII or Draize > 5-8 with
destruction of tissue. Eye Irritation: Corrosive, irreversible destruction
of ocular tissue; corneal involvement or irritation persisting for more
than 21 days. Draize > 80 with effects irreversible in 21 days. Oral
Toxicity LD50 Rat: > 1-50 mg/kg. Dermal Toxicity LD50Rat or Rabbit: >
20-200 mg/kg. Inhalation Toxicity LC50 4-hrs Rat: > 0.05-0.5 mg/L.); 4
(Severe Hazard: Life-threatening; major or permanent damage may
result from single or repeated exposure.
Skin Irritation:
Not
appropriate. Do not rate as a “4”, based on skin irritation alone. Eye
Irritation: Not appropriate. Do not rate as a “4”, based on eye irritation
alone. Oral Toxicity LD50 Rat: < 1 mg/kg. Dermal Toxicity LD50Rat or
Rabbit: < 20 mg/kg. Inhalation Toxicity LC50 4-hrs Rat: < 0.05 mg/L).
FLAMMABILITY HAZARD:
0 (Minimal Hazard-Materials that will not burn in air when exposure to a
temperature of 815.5°C [1500°F] for a period of 5 minutes.); 1 (Slight
Hazard-Materials that must be pre-heated before ignition can occur.
Material require considerable pre-heating, under all ambient
temperature conditions before ignition and combustion can occur,
Including: Materials that will burn in air when exposed to a temperature
of 815.5°C (1500°F) for a period of 5 minutes or less; Liquids, solids
and semisolids having a flash point at or above 93.3°C [200°F] (e.g.
OSHA Class IIIB, or; Most ordinary combustible materials [e.g. wood,
paper, etc.]; 2 (Moderate Hazard-Materials that must be moderately
heated or exposed to relatively high ambient temperatures before
ignition can occur. Materials in this degree would not, under normal
conditions, form hazardous atmospheres in air, but under high ambient
temperatures or moderate heating may release vapor in sufficient
quantities to produce hazardous atmospheres in air, Including: Liquids
having a flash-point at or above 37.8°C [100°F]; Solid materials in the
form of course dusts that may burn rapidly but that generally do not
form explosive atmospheres; Solid materials in a fibrous or shredded
form that may burn rapidly and create flash fire hazards (e.g. cotton,
sisal, hemp; Solids and semisolids that readily give off flammable
vapors.); 3 (Serious Hazard- Liquids and solids that can be ignited
under almost all ambient temperature conditions. Materials in this
degree produce hazardous atmospheres with air under almost all
ambient temperatures, or, unaffected by ambient temperature, are
readily ignited under almost all conditions, including: Liquids having a
flash point below 22.8°C [73°F] and having a boiling point at or above
38°C [100°F] and below 37.8°C [100°F] [e.g. OSHA Class IB and IC];
Materials that on account of their physical form or environmental
conditions can form explosive mixtures with air and are readily
dispersed in air [e.g., dusts of combustible solids, mists or droplets of
flammable liquids]; Materials that burn extremely rapidly, usually by
reason of self-contained oxygen [e.g. dry nitrocellulose and many
organic peroxides]); 4 (Severe Hazard-Materials that will rapidly or
completely vaporize at atmospheric pressure and normal ambient
temperature or that are readily dispersed in air, and which will burn
readily, including: Flammable gases; Flammable cryogenic materials;
Any liquid or gaseous material that is liquid while under pressure and
has a flash point below 22.8°C [73°F] and a boiling point below 37.8°C
[100°F] [e.g. OSHA Class IA; Material that ignite spontaneously when
exposed to air at a temperature of 54.4°C [130°F] or below [e.g.
pyrophoric]).
PAGE 8 OF 10
DEFINITIONS OF TERMS (Continued)
HAZARDOUS MATERIALS IDENTIFICATION
HAZARD RATINGS (continued):
SYSTEM
PHYSICAL HAZARD:
0 (Water Reactivity: Materials that do not react with water. Organic
Peroxides: Materials that are normally stable, even under fire
conditions and will not react with water. Explosives: Substances that
are Non-Explosive. Unstable Compressed Gases:
No Rating.
Pyrophorics: No Rating. Oxidizers: No “0” rating allowed. Unstable
Reactives: Substances that will not polymerize, decompose, condense
or self-react.); 1 (Water Reactivity: Materials that change or decompose
upon exposure to moisture. Organic Peroxides: Materials that are
normally stable, but can become unstable at high temperatures and
pressures. These materials may react with water, but will not release
energy. Explosives: Division 1.5 & 1.6 substances that are very
insensitive explosives or that do not have a mass explosion hazard.
Compressed Gases: Pressure below OSHA definition. Pyrophorics:
No Rating. Oxidizers: Packaging Group III; Solids: any material that in
either concentration tested, exhibits a mean burning time less than or
equal to the mean burning time of a 3:7 potassium bromate/cellulose
mixture and the criteria for Packing Group I and II are not met. Liquids:
any material that exhibits a mean pressure rise time less than or equal
to the pressure rise time of a 1:1 nitric acid (65%)/cellulose mixture and
the criteria for Packing Group I and II are not met. Unstable Reactives:
Substances that may decompose, condense or self-react, but only
under conditions of high temperature and/or pressure and have little or
no potential to cause significant heat generation or explosive hazard.
Substances that readily undergo hazardous polymerization in the
absence of inhibitors.); 2 (Water Reactivity: Materials that may react
violently with water. Organic Peroxides: Materials that, in themselves,
are normally unstable and will readily undergo violent chemical change,
but will not detonate. These materials may also react violently with
water. Explosives: Division 1.4 – Explosive substances where the
explosive effect are largely confined to the package and no projection
of fragments of appreciable size or range are expected. An external
fire must not cause virtually instantaneous explosion of almost the
entire contents of the package. Compressed Gases: Pressurized and
meet OSHA definition but < 514.7 psi absolute at 21.1°C (70°F) [500
psig]. Pyrophorics: No Rating. Oxidizers: Packing Group II Solids:
any material that, either in concentration tested, exhibits a mean
burning time of less than or equal to the mean burning time of a 2:3
potassium bromate/cellulose mixture and the criteria for Packing Group
I are not met. Liquids: any material that exhibits a mean pressure rise
time less than or equal to the pressure rise of a 1:1 aqueous sodium
chlorate solution (40%)/cellulose mixture and the criteria for Packing
Group I are not met. Unstable Reactives: Substances that may
polymerize, decompose, condense, or self-react at ambient
temperature and/or pressure, but have a low potential for significant
heat generation or explosion. Substances that readily form peroxides
upon exposure to air or oxygen at room temperature); 3 (Water
Reactivity: Materials that may form explosive reactions with water.
Organic Peroxides: Materials that are capable of detonation or
explosive reaction, but require a strong initiating source, or must be
heated under confinement before initiation; or materials that react
explosively with water. Explosives:
Division 1.2 – Explosive
substances that have a fire hazard and either a minor blast hazard or a
minor projection hazard or both, but do not have a mass explosion
hazard. Compressed Gases: Pressure > 514.7 psi absolute at 21.1°C
(70°F) [500 psig]. Pyrophorics: No Rating. Oxidizers: Packing Group I
Solids: any material that, in either concentration tested, exhibits a mean
burning time less than the mean burning time of a 3.:2 potassium
bromate/cellulose mixture. Liquids: Any material that spontaneously
ignites when mixed with cellulose in a 1:1 ratio, or which exhibits a
mean pressure rise time less than the pressure rise time of a 1:1
perchloric acid (50%)/cellulose mixture.
Unstable Reactives:
Substances that may polymerize, decompose, condense or self-react
at ambient temperature and/or pressure and have a moderate potential
to cause significant heat generation or explosion.);
ACETYLENE - C2H2 MSDS (Document # 001001)
HAZARDOUS MATERIALS IDENTIFICATION
HAZARD RATINGS (continued):
SYSTEM
PHYSICAL HAZARD (continued):
4 (Water Reactivity: Materials that react explosively with water without
requiring heat or confinement. Organic Peroxides: Materials that are
readily capable of detonation or explosive decomposition at normal
temperature and pressures. Explosives: Division 1.1 & 1.2-explosive
substances that have a mass explosion hazard or have a projection
hazard. A mass explosion is one that affects almost the entire load
instantaneously. Compressed Gases: No Rating. Pyrophorics: Add to
the definition of Flammability “4”. Oxidizers: No “4” rating. Unstable
Reactives: Substances that may polymerize, decompose, condense or
self-react at ambient temperature and/or pressure and have a high
potential to cause significant heat generation or explosion.).
NATIONAL FIRE PROTECTION ASSOCIATION HAZARD
RATINGS:
HEALTH HAZARD: 0 (material that on exposure under fire conditions
would offer no hazard beyond that of ordinary combustible materials); 1
(materials that on exposure under fire conditions could cause irritation
or minor residual injury); 2 (materials that on intense or continued
exposure under fire conditions could cause temporary incapacitation or
possible residual injury); 3 (materials that can on short exposure could
cause serious temporary or residual injury); 4 (materials that under
very short exposure could cause death or major residual injury).
FLAMMABILITY HAZARD AND REACTIVITY HAZARD: Refer to
definitions for “Hazardous Materials Identification System”.
FLAMMABILITY LIMITS IN AIR: Much of the information related
to fire and explosion is derived from the National Fire Protection
Association (NFPA). Flash Point - Minimum temperature at which a
liquid gives off sufficient vapors to form an ignitable mixture with air.
Autoignition Temperature: The minimum temperature required to
initiate combustion in air with no other source of ignition. LEL - the
lowest percent of vapor in air, by volume, that will explode or ignite in
the presence of an ignition source. UEL - the highest percent of vapor
in air, by volume, that will explode or ignite in the presence of an
ignition source.
TOXICOLOGICAL INFORMATION:
Human and Animal Toxicology: Possible health hazards as derived
from human data, animal studies, or from the results of studies with
similar compounds are presented. Definitions of some terms used in
this section are: LD50 - Lethal Dose (solids & liquids) which kills 50% of
the exposed animals; LC50 - Lethal Concentration (gases) which kills
50% of the exposed animals; ppm concentration expressed in parts of
3
material per million parts of air or water; mg/m concentration
expressed in weight of substance per volume of air; mg/kg quantity of
material, by weight, administered to a test subject, based on their body
weight in kg. Other measures of toxicity include TDLo, the lowest dose
to cause a symptom and TCLo the lowest concentration to cause a
symptom; TDo, LDLo, and LDo, or TC, TCo, LCLo, and LCo, the
lowest dose (or concentration) to cause lethal or toxic effects. Cancer
Information: The sources are: IARC - the International Agency for
Research on Cancer; NTP - the National Toxicology Program, RTECS
- the Registry of Toxic Effects of Chemical Substances, OSHA and
CAL/OSHA. IARC and NTP rate chemicals on a scale of decreasing
potential to cause human cancer with rankings from 1 to 4.
Subrankings (2A, 2B, etc.) are also used. Other Information: BEI ACGIH Biological Exposure Indices, represent the levels of
determinants which are most likely to be observed in specimens
collected from a healthy worker who has been exposed to chemicals to
the same extent as a worker with inhalation exposure to the TLV.
PAGE 9 OF 10
DEFINITIONS OF TERMS (Continued)
ECOLOGICAL INFORMATION:
EC is the effect concentration in water. BCF = Bioconcentration Factor, which is used to determine if a substance will concentrate in lifeforms
which consume contaminated plant or animal matter. TLm = median threshold limit; Coefficient of Oil/Water Distribution is represented by log Kow
or log Koc and is used to assess a substance’s behavior in the environment.
REGULATORY INFORMATION:
U.S. and CANADA:
This section explains the impact of various laws and regulations on the material. ACGIH: American Conference of Governmental Industrial
Hygienists, a professional association which establishes exposure limits. EPA is the U.S. Environmental Protection Agency. NIOSH is the National
Institute of Occupational Safety and Health, which is the research arm of the U.S. Occupational Safety and Health Administration (OSHA). WHMIS
is the Canadian Workplace Hazardous Materials Information System. DOT and TC are the U.S. Department of Transportation and the Transport
Canada, respectively.
Superfund Amendments and Reauthorization Act (SARA); the Canadian Domestic/Non-Domestic Substances List (DSL/NDSL); the U.S. Toxic
Substance Control Act (TSCA); Marine Pollutant status according to the DOT; the Comprehensive Environmental Response, Compensation, and
Liability Act (CERCLA or Superfund); and various state regulations. This section also includes information on the precautionary warnings which
appear on the material’s package label. OSHA - U.S. Occupational Safety and Health Administration.
ACETYLENE - C2H2 MSDS (Document # 001001)
PAGE 10 OF 10
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement