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MSDS Material Safety Data Sheet
CAS

7727-37-9

File Name: avogadro_chem_iastate_edu---nitrogen.asp
                     MATERIAL SAFETY DATA SHEET

SECTION 1. PRODUCT IDENTIFICATION

PRODUCT NAME: Nitrogen, compressed
CHEMICAL NAME: Nitrogen
FORMULA: N2
SYNONYMS: Nitrogen gas, Gaseous Nitrogen, GAN

MANUFACTURER: Air Products and Chemicals, Inc.
7201 Hamilton Boulevard
Allentown, PA 18195 - 1501
PRODUCT INFORMATION: 1-800-752-1597
MSDS NUMBER: 1011 REVISION: 5
REVISION DATE: March 1994 REVIEW DATE:
August 1997

SECTION 2. COMPOSITION/INFORMATION ON INGREDIENTS

Nitrogen is sold as pure product > 99%.
CAS NUMBER: 7727-37-9
EXPOSURE LIMITS:
OSHA: Not established ACGIH: Simple asphyxiant NIOSH: Not established

SECTION 3. HAZARDS IDENTIFICATION

EMERGENCY OVERVIEW
Nitrogen is a nontoxic, odorless, colorless, nonflammable compressed gas stored in
cylinders at high pressure. It can cause rapid suffocation when concentrations are
sufficient to reduce oxygen levels below 19.5%. Self Contained Breathing
Apparatus (SCBA) may be required.


EMERGENCY TELEPHONE NUMBERS
800-523-9374 Continental U.S. , Canada and Puerto Rico
610-481-7711 other locations

POTENTIAL HEALTH EFFECTS INFORMATION:
INHALATION: Simple asphyxiant. Nitrogen is nontoxic, but may cause
suffocation by displacing the oxygen in air. Lack of sufficient oxygen can cause
serious injury or death.
EYE CONTACT: No adverse effect.
SKIN CONTACT: No adverse effect.
EXPOSURE INFORMATION:
ROUTE OF ENTRY: Inhalation
TARGET ORGANS: None




MSDS # 1011 NITROGEN Page 1 of 5
EFFECT: Asphyxiation (suffocation)
SYMPTOMS: Exposure to an oxygen deficient atmosphere (<19.5%) may cause dizziness,
drowsiness, nausea, vomiting, excess salivation, diminished mental alertness, loss of
consciousness and death. Exposure to atmospheres containing 8-10% or less oxygen will bring
about unconsciousness without warning and so quickly that the individuals cannot help
themselves.
MEDICAL CONDITIONS AGGRAVATED BY OVEREXPOSURE: None
CARCINOGENIC POTENTIAL: Nitrogen is not listed as a carcinogen or potential carcinogen by
NTP, IARC, or OSHA .

SECTION 4. FIRST AID

INHALATION: Persons suffering from lack of oxygen should be moved to fresh air. If victim is not
breathing, administer artificial respiration. If breathing is difficult, administer oxygen. Obtain
prompt medical attention.
EYE CONTACT: Not applicable.
SKIN CONTACT: Not applicable.

SECTION 5. FIRE AND EXPLOSION

FLASH POINT: AUTOIGNITION: FLAMMABLE LIMITS:
Not applicable Nonflammable Nonflammable

EXTINGUISHING MEDIA: Nitrogen is nonflammable and does not support combustion. Use
extinguishing media appropriate for the surrounding fire.
HAZARDOUS COMBUSTION PRODUCTS: None
SPECIAL FIRE FIGHTING INSTRUCTIONS: Nitrogen is a simple asphyxiant. If possible, remove
nitrogen cylinders from fire area or cool with water. SCBA may be required by rescue workers.
UNUSUAL FIRE AND EXPLOSION HAZARDS: Upon exposure to intense heat or flame cylinder
may vent rapidly and/or rupture violently. Most cylinders are designed to vent contents when
exposed to elevated temperatures. Pressure in a container can build up due to heat and it may
rupture if pressure relief devices should fail to function.

SECTION 6. ACCIDENTAL RELEASE MEASURES

Evacuate all personnel from affected area. Increase ventilation to release area and monitor
oxygen level. Use appropriate protective equipment (SCBA). If leak is from container or its valve,
call the Air Products emergency telephone number. If leak is in user鈥檚 system close cylinder valve
and vent pressure before attempting repairs.

SECTION 7. HANDLING AND STORAGE

STORAGE: Cylinders should be stored upright in a well-ventilated, secure area, protected from the
weather. Storage area temperatures should not exceed 125 掳F (52 掳C) and area should be free of
combustible materials. Storage should be away from heavily traveled areas and emergency exits.
Avoid areas where salt or other corrosive materials are present. Valve protection caps and valve
outlet seals should remain on cylinders not connected for use. Separate full from empty cylinders.
Avoid excessive inventory and storage time. Use a first-in first-out system. Keep good inventory
records.
HANDLING: Do not drag, roll, or slide cylinder. Use a suitable handtruck designed for cylinder
movement. Never attempt to lift a cylinder by its cap. Secure cylinders at all times while in use.
Use a pressure reducing regulator or separate control valve to safely discharge gas from cylinder.
Use a check valve to prevent reverse flow into cylinder. Do not overheat cylinder to increase
pressure or discharge rate. If user experiences any difficulty operating cylinder valve, discontinue
use and contact supplier. Never insert an object (e.g., wrench, screwdriver, pry bar, etc.) into valve
cap openings. Doing so may


MSDS # 1011 NITROGEN Page 2 of 5
Pub #310-812
damage valve causing a leak to occur. Use a special cap wrench or adjustable strap-wrench to
remove over-tight or rusted caps.
Nitrogen is compatible with all common materials of construction. Pressure requirements should
be considered when selecting materials and designing systems.
SPECIAL REQUIREMENTS: Always store and handle compressed gases in accordance with
Compressed Gas Association, Inc. (ph. 703-412-0900) pamphlet CGA P-1, Safe Handling of
Compressed Gases in Containers. Local regulations may require specific equipment for storage or
use.
CAUTION: Users of nitrogen must be aware of the hazards caused by the accumulation of high
concentrations, especially in confined spaces. Compliance with OSHA regulations, especially
29 CFR 1910.146 (confined space entry), is essential

SECTION 8. PERSONAL PROTECTION / EXPOSURE CONTROL

ENGINEERING CONTROLS: Provide good ventilation and/or local exhaust to prevent
accumulation of high concentrations of gas. Oxygen levels in work area should be monitored to
ensure they do not fall below 19.5%.
RESPIRATORY PROTECTION:
GENERAL USE: None required.
EMERGENCY: Use SCBA or positive pressure air line with mask and escape pack in areas
where oxygen concentration is less than 19.5%. Air purifying respirators will not provide
protection.
OTHER PROTECTIVE EQUIPMENT: Safety glasses. Safety shoes and leather work gloves are
recommended when handling cylinders.

SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES

APPEARANCE: Colorless gas
ODOR: Odorless
MOLECULAR WEIGHT: 28.01
BOILING POINT (1 Atm): -320.4 掳F (-195.8 掳C)
SPECIFIC GRAVITY (Air =1): 0.967
SPECIFIC VOLUME (at 70 F (21.1 C) and 1 atm): 13.81 ft 3/lb (0.867m 3/kg)
FREEZING POINT/MELTING POINT: -345.8 掳F (-209.9 掳C)
VAPOR PRESSURE: Not applicable at 70 掳F
GAS DENSITY (at 70 F (21.1 C) and 1 atm): 0.072 lb/ft 3 (1.153 kg/m3)
SOLUBILITY IN WATER (Vol./Vol. at 32掳F (0掳C)): 0.023

SECTION 10. STABILITY AND REACTIVITY

CHEMICAL STABILITY: Stable
CONDITIONS TO AVOID: None
INCOMPATIBILITY: None
HAZARDOUS DECOMPOSITION PRODUCTS: None
HAZARDOUS POLYMERIZATION: Will not occur.

SECTION 11. TOXICOLOGICAL INFORMATION

Nitrogen is a simple asphyxiant.




MSDS # 1011 NITROGEN Page 3 of 5
Pub #310-812
SECTION 12. ECOLOGICAL INFORMATION

The atmosphere contains approximately 78% nitrogen. No adverse ecological effects are
expected. Nitrogen does not contain any Class I or Class II ozone depleting chemicals. Nitrogen is
not listed as a marine pollutant by DOT (49 CFR 171).

SECTION 13. DISPOSAL

UNUSED PRODUCT / EMPTY CONTAINER: Return cylinder and unused product to supplier. Do not
attempt to dispose of residual or unused quantities.
DISPOSAL: For emergency disposal, secure the cylinder and slowly discharge gas to the
atmosphere in a well ventilated area or outdoors.

SECTION 14. TRANSPORT INFORMATION

DOT HAZARD CLASS: 2.2 DOT SHIPPING LABEL: Nonflammable Gas
DOT SHIPPING NAME: Nitrogen, Compressed IDENTIFICATION NUMBER: UN1066
REPORTABLE QUANTITY (RQ): None
SPECIAL SHIPPING INFORMATION: Cylinders should be transported in a secure upright position in
a well ventilated truck. Never transport in passenger compartment of a vehicle.
Compressed gas cylinders shall not be refilled except by qualified producers of compressed gases.
Shipment of a compressed gas cylinder which has not been filled by the owner or with the owner鈥檚
written consent is a violation of federal law.

SECTION 15. REGULATORY INFORMATION

U.S. FEDERAL REGULATIONS:
ENVIRONMENTAL PROTECTION AGENCY (EPA):
CERCLA: Comprehensive Environmental Response, Compensation, and Liability Act of 1980
requires notification to the National Response Center of a release of quantities of hazardous
substances equal to or greater than their reportable quantities (RQ鈥檚) in 40 CFR 302.4.
CERCLA Reportable Quantity: None.
SARA TITLE III: Superfund Amendment and Reauthorization Act of 1986
SECTION 302/304: Requires emergency planning on threshold planning quantities (TPQ)
and release reporting based on reportable quantities (RQ) of EPA's extremely hazardous
substances (40 CFR 355).
Nitrogen is not listed as an extremely hazardous substance.
Threshold Planning Quantity (TPQ): None
SECTIONS 311/312: Require submission of material safety data sheets (MSDSs) and
chemical inventory reporting with identification of EPA defined hazard classes. The hazard
classes for this product are:
IMMEDIATE HEALTH: No PRESSURE: Yes
DELAYED HEALTH: No REACTIVITY: No
FIRE: No
SECTION 313: Requires submission of annual reports of release of toxic chemicals that
appear in 40 CFR 372.
Nitrogen does not require reporting under Section 313.




MSDS # 1011 NITROGEN Page 4 of 5
Pub #310-812
40 CFR Part 68 - Risk Management for Chemical Accident Release Prevention: Requires the
development and implementation of risk management programs at facilities that manufacture,
use, store, or otherwise handle regulated substances in quantities that exceed specified
thresholds.
Nitrogen is not listed as a regulated substance.
TSCA - TOXIC SUBSTANCES CONTROL ACT: Nitrogen is listed on the TSCA inventory.
OSHA - OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION:
29 CFR 1910.119 - Process Safety Management of Highly Hazardous Chemicals: Requires
facilities to develop a process safety management program based on Threshold Quantities (TQ)
of highly hazardous chemicals.
Nitrogen is not listed in Appendix A as a highly hazardous chemical.
STATE REGULATIONS
CALIFORNIA:
Proposition 65: This product does NOT contain any listed substances which the
State of California requires warning under this statute.
SCAQMD Rule: VOC = Not applicable

SECTION 16. OTHER INFORMATION
NFPA RATINGS: HMIS RATINGS:
HEALTH: 0 HEALTH: 0
FLAMMABILITY: 0 FLAMMABILITY: 0
REACTIVITY: 0 REACTIVITY: 0
SPECIAL: SA*
*Compressed Gas Association recommendation to designate simple asphyxiant.


** Documents with Review Dates August 1997 and Revision Date March 1994 are identical in
content and either may be used.




MSDS # 1011 NITROGEN Page 5 of 5
Pub #310-812

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