NLB2240

NLB2240
Emergency Contact: Chemtrec (800) 424-9300
Or Norco (208) 336-1643
1125 West Amity Road
Boise, ID 83705
Nitrogen Dioxide 0.0002% to 0.005% in Nitrogen
(208) 336-1643
MATERIAL SAFETY DATA SHEET
Identification
Product Name: Nitrogen Dioxide 0.0002% to 0.005% (2 to 500 PPM) in Nitrogen
CAS Number: N/A
Chemical Family:
Gas Mixture
Chemical Formula:
NO2 in N2
Synonyms:
Calibration Gas Mixture, Cal Gas, NOx Gas Mix
MSDS Identification Code/Number: 2240
Prepared By:
Quality Dept.
Revision Date: 03/05/02
Last Review Date: 02/16/07
Composition, Information on Ingredients
Exposure Limits1:
INGREDIENT
Nitrogen Dioxide
Formula: NO2
CAS: 10102-44-0
RTECS#: QW9800000
Nitrogen
Formula: N2
CAS: 7727-37-9
RTECS#: QW9700000
PEL-OSHA2
TLV-ACGIH3
0.0002% to
0.005%
5 ppm Ceiling
3 ppm TWA
5ppm STEL
LD50 or LC50
Route/Species
LC50: 115 ppm
Inhalation/rat 1 Hr.
99.005% to
99.9999%
None Established
Simple Asphyxiant
Not Available
% VOLUME
1
Refer to individual state or provincial regulations, as applicable, for limits that may be more stringent than those listed here.
As stated in 29 CFR 1910, Subpart Z (revised July 1, 1993).
3
As stated in the ACGIH 2006 Threshold Limit Values for Chemical Substances and Physical Agents.
2
OSHA Regulatory Status: This material is classified as hazardous under OSHA regulations.
Hazards Identification
Emergency Overview:
This product is a colorless gas with a slight acrid odor. At higher concentrations nitrogen dioxide has a reddish brown color. Nitrogen
dioxide is extremely toxic by inhalation, and symptoms of over-exposure may not become apparent for up to 72 hours. Overexposures to this gas may result in severe irritation and burns of eyes, skin, mucous membranes, and any other exposed tissue. If high
concentrations of nitrogen dioxide (>100 ppm) are inhaled, delayed pulmonary damage and breathing difficulty may occur. Nitrogen
acts as a simple asphyxiant by displacing oxygen necessary to support life. Contents under pressure. Use and store below 125O F,
(52O C).
NorLab Material Safety Data Sheet # 2240, Nitrogen Dioxide 0.0002% to 0.005% in Nitrogen, Page 2 of 6
Hazards Identification Cont.
Route of Entry:
Skin Contact
Yes
Skin Absorption
No
Eye Contact
Yes
Health Effects:
Exposure Limits
Yes
Teratogen
Yes
Synergistic Effects
None reported
Carcinogenicity:
NTP: No
Inhalation
Yes
Irritant
Yes
Reproductive Hazard
Yes
IARC: No
Ingestion
No
Sensitization
No
Mutagen
Yes
OSHA: No
Eye Effects:
May cause irritation. Contact with rapidly expanding gas near the point of release may cause frostbite.
Skin Effects:
May irritate the skin upon contact. Contact with rapidly expanding gas near the point of release may cause frostbite with redness, skin
color change to gray or white, and blistering.
Ingestion Effects:
Ingestion is unlikely. Gas at room temperature.
Inhalation Effects:
Inhalation of nitrogen dioxide in low concentrations produces an irritating effect on the mucous membranes of the eyes, nose, throat,
and lungs. Acute exposure through inhalation may result in dryness and irritation of the nose and throat, choking, coughing, and
bronchospasm. Severe overexposure may cause death through systemic, delayed pulmonary edema. Exposure to high concentrations
may also cause unconsciousness, and under some circumstances, death. Medical care after overexposure is essential as symptoms will
rapidly worsen, possibly leading to death.
Nitrogen acts as a simple asphyxiant. Accumulation of high concentrations can displace oxygen content in the air necessary to
support life.
Medical Conditions Aggravated by Exposure:
Pre-existing respiratory, dental, skin and eye conditions may be aggravated by overexposure to this gas mixture.
NFPA Hazard Codes
HMIS Hazard Codes
Ratings System
Health:
Flammability:
Reactivity:
Health:
3
Flammability:
0
Physical Hazard: 3
0 = No Hazard
1 = Slight hazard
2 = Moderate Hazard
3 = Serious Hazard
4 = Severe Hazard
3
0
0
Hazard Ratings were assigned in accordance with Compressed Gas Association (CGA) guidelines as published in CGA Pamphlet P19_2004, CGA Recommended Hazard ratings for Compressed Gases, 2nd Edition.
First Aid Measures
Eye:
PERSONS WITH POTENTIAL EXPOSURE TO NITROGEN DIOXIDE SHOULD NOT WEAR CONTACT LENSES. Flush eyes
with large amounts of water for at least 15 minutes, holding eyelids open to ensure adequate rinsing. If irritation persists, seek
immediate medical attention.
NorLab Material Safety Data Sheet # 2240, Nitrogen Dioxide 0.0002% to 0.005% in Nitrogen, Page 3 of 6
First Aid Measures Continued
Skin:
Remove contaminated clothing and flush affected area with large quantities of water. If irritation persists or symptoms occur, seek
medical attention.
Ingestion:
Not anticipated; product is a gas.
Inhalation:
PROMPT REMOVAL FROM THE CONTAMINATED AREA AND IMMEDIATE MEDICAL ATTENTION IS MANDATORY
IN ALL CASES OF OVEREXPOSURE. RESCUE PERSONNEL SHOULD BE EQUIPPED WITH SELF-CONTAINED
BREATHING APPARATUS.
Delayed onset of life-threatening symptoms is likely to occur. Victim(s) must be taken for medical attention.
Victims should be carried (not assisted) to an uncontaminated area and inhale fresh air supplemented with oxygen. Quick removal
from the contaminated area is most important. Keep patient warm, quiet and under competent medical observation until the danger of
delayed pulmonary edema has passed (at least 72 hours). Any physical exertion during this period should be discouraged as it may
increase the severity of the pulmonary edema or chemical pneumonitis. Bed rest is indicated. Unconscious persons should be moved
to an uncontaminated area, given artificial resuscitation and supplemental oxygen. Once respiration has been restored, they should be
treated as above.
Fire Fighting Measures
Conditions of Flammability: Not flammable
Flash point: None
Method:
Not Applicable
LEL (%): Not Applicable
Hazardous combustion products: Nitrogen compounds
Sensitivity to mechanical shock: None
Sensitivity to static discharge: None
Autoignition Temperature:
None
UEL (%): Not Applicable
Fire and Explosion Hazards:
Nonflammable. Cylinders may rupture violently from pressure when involved in a fire situation.
Extinguishing Media:
Use media suitable for surrounding combustible or flammable materials. Nitrogen dioxide can slowly react with water to form a
corrosive solution of nitric acid. Nitric acid is corrosive to skin and metal.
Fire Fighting Instructions:
Stop the flow of gas if it can be done without risk. Use water spray to cool surrounding containers. Continue to cool surrounding
containers until well after flames are extinguished. Firefighters should wear a full-face piece, NIOSH/MSHA-approved self-contained
breathing apparatus (SCBA) operated in positive pressure mode and full turnout gear.
Accidental Release Measures
Isolate hazard area, evacuate personnel and deny entry to unauthorized/unprotected individuals. Extinguish all ignition sources and
ventilate closed spaces and low areas. Personnel entering area should wear appropriate protective equipment, including respiratory
protection suitable for unknown concentrations. Personnel should not re-enter an area until nitrogen dioxide has sufficiently dispersed
and adequate oxygen re-established. If a leak is in user’s equipment, be certain to purge piping with an inert gas prior to attempting
repairs. If leak is in container valve, contact the appropriate emergency telephone number listed in Section 1 or call your closest
Norco/NorLab location.
NorLab Material Safety Data Sheet # 2240, Nitrogen Dioxide 0.0002% to 0.005% in Nitrogen, Page 4 of 6
Handling and Storage
Electrical classification:
Non-hazardous
Use only in well-ventilated areas. Valve protection caps must remain in place on refillable cylinders unless cylinder is secured with
valve outlet piped to use point. Do not drag, slide or roll cylinders. Use a suitable hand truck for cylinder movement. Use a pressure
reducing regulator when connecting cylinder to lower pressure piping or systems. Do not heat cylinder by any means to increase the
discharge rate of product from the cylinder. Use a check valve or trap in the discharge line to prevent hazardous back flow into the
cylinder.
Protect cylinders from physical damage. Store in cool, dry, well-ventilated area of non-combustible construction away from heavy
traffic areas and emergency exits. Do not allow the temperature where cylinders are stored to exceed 125O F. Cylinders should be
stored upright and firmly secured to prevent falling or being knocked over. Use a “first in-first out” inventory system to prevent full
cylinders being stored for excessive periods of time.
For additional recommendations, consult Compressed gas Association Pamphlet P-1.
Never carry a compressed gas cylinder or a container of a gas in cryogenic liquid form in an enclosed space such as a car trunk, van or
station wagon. A leak can result in a fire, explosion, asphyxiation or a toxic exposure.
Exposure Controls, Personal Protection
Engineering Controls:
Use a laboratory hood with forced ventilation for handling small quantities. Use local exhaust to prevent accumulation above the
exposure limit.
Eye/Face Protection:
Chemical safety goggles with full faceshield.
Skin Protection:
Protective gloves as appropriate for the job (rubber or Teflon for pure nitrogen dioxide).
Respiratory Protection:
A NIOSH/MSHA-approved full-facepiece SCBA operated in positive mode and/or any supplied air respirator with a full-facepiece
and operated in a positive pressure mode in combination with an auxiliary self contained breathing apparatus operated in positive
pressure mode should be used for high or unknown concentrations. Respirators should be stored in an area not likely to be
contaminated.
Other/General Protection:
Safety shoes, safety showers and an emergency eyewash station should be available.
NorLab Material Safety Data Sheet # 2240, Nitrogen Dioxide 0.0002% to 0.005% in Nitrogen, Page 5 of 6
Physical and Chemical Properties
PARAMETER
Physical state (gas, liquid, solid)
Vapor pressure
Vapor density (Air = 1)
Evaporation point
Boiling point
Freezing point
pH
Specific gravity
Oil/water partition coefficient
Solubility (H2O) vol/vol @0O C (32OF) and 1 atm.
Odor threshold
Odor and appearance
VALUE
UNITS
: Gas
: Not applicable
: 0.906
: Not applicable
O
: -320.4
F
O
: -195.8
C
O
: -345.9
F
O
: -209.9
C
: Not applicable
: Not available
: Not available
: 0.023
: 0.1 to 0.4 ppm for nitrogen dioxide
: Colorless to red-brown non-flammable gas with an acidic odor.
Stability and Reactivity
Stability:
Stable under normal conditions.
Incompatible Materials:
Nitrogen dioxide is not compatible with strong bases, strong oxidizers, alkali metals, alkali earth metals and powdered metals.
Hazardous Decomposition Products:
None
Hazardous Polymerization:
Will not occur.
Toxicological Information
Nitrogen dioxide is highly toxic and hazardous because of its ability to cause delayed chemical pneumonitis and pulmonary edema.
Chronic or repeated exposure may cause permanent decrements in pulmonary function (silo filler’s disease). The absence of marked
acute irritation of nitrogen dioxide limits its warning properties.
LC50 (Rat), Inhalation of 115 PPM for 1 hour.
Experimental data indicate this compound may produce teratogenic, reproductive or mutagenic effects.
Ecological Information
Environmental Fate:
This gas mixture will be dissipated rapidly in well-ventilated areas. Complex reactions of nitrogen dioxide occur in the atmosphere
which contribute to air pollution.
Nitrogen dioxide hydrolyzes to nitric acid when in contact with water.
NorLab Material Safety Data Sheet # 2240, Nitrogen Dioxide 0.0002% to 0.005% in Nitrogen, Page 6 of 6
Disposal Considerations
Do not attempt to dispose of waste or unused quantities in returnable cylinders. Return in the shipping container, properly labeled,
with any valve outlet plugs or caps secure and valve protection cap in place to NorLab for proper disposal. Non-refillable containers
should be vented in a well-ventilated area then disposed of in compliance with local regulations, or returned to NorLab.
Transportation Information
Parameter
Proper Shipping Name:
Hazard Class:
Identification Number:
Shipping Label:
United States DOT
Compressed gas, n.o.s.,
(nitrogen dioxide, nitrogen)
2.2
UN 1956
Non Flammable Gas
Canada TDG
Compressed gas, n.o.s.
2.2
UN 1956
Non Flammable Gas
Regulatory Information
SARA Title III Notifications and Information:
Releases of
Releases of nitrogen dioxide in quantities equal to or greater than the reportable quantity (RQ) of 10 pounds are subject to reporting to
the National Response Center under CERCLA, Section 304 SARA Title III.
Nitrogen dioxide is listed under Section 302 as an extremely hazardous Substance (EHS). The presence of nitrogen dioxide in
quantities in excess of the threshold planning quantity (TPQ) of 100 pounds requires certain emergency planning activities to be
conducted.
SARA Title III – Hazard Classes:
Acute Health Hazard
Sudden Release of Pressure Hazard
California Proposition 65: This product does not contain ingredient(s) known to the State of California to cause cancer or
reproductive toxicity.
Other Information
Compressed gas cylinders must not be refilled without the express written permission of the owner. Shipment of a compressed gas
cylinder which has not been filled by the owner or with his/her (written) consent is a violation of transportation regulations.
Disclaimer of expressed and implied warranties:
Although reasonable care has been taken in the preparation of this document, we extend no warranties and make no representations as
to the accuracy or completeness of the information contained herein, and assume no responsibility regarding the suitability of this
information for the user’s intended purposes or for the consequences of its use. Each individual should make a determination as to the
suitability of the information for their particular purpose(s).
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