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Section 1. Chemical product and company identification
Product name

Supplier
: AIRGAS INC., on behalf of its subsidiaries
259 North Radnor-Chester RoadSuite 100Radnor, PA 19087-52831-610-687-5253 Product use
: Synthetic/Analytical chemistry.
: Molecular oxygen; Oxygen molecule; Pure oxygen; O2; UN 1072; Dioxygen; Oxygen
Date of Preparation/
: 9/24/2013.
Revision
In case of emergency

: 1-866-734-3438
Section 2. Hazards identification
Physical state

: Gas. [Compressed gas.]
Emergency overview
: DANGER!
GAS:OXIDIZER.
CONTACT WITH COMBUSTIBLE MATERIAL MAY CAUSE FIRE.
CONTENTS UNDER PRESURE.
Do not puncture or incinerate container.
May cause severe frostbite.
LIQUID:OXIDIZER.
CONTACT WITH COMBUSTIBLE MATERIAL MAY CAUSE FIRE.
Extremely cold liquid and gas under pressure.
May cause severe frostbite.
Do not puncture or incinerate container. Store in tightly-closed container. Avoid contact with combustible materials.
Contact with rapidly expanding gases or liquids can cause frostbite.
Routes of entry
: Inhalation
Potential acute health effects
: May cause eye irritation. Contact with rapidly expanding gas may cause burns or
frostbite. Contact with cryogenic liquid can cause frostbite and cryogenic burns.
: May cause skin irritation. Contact with rapidly expanding gas may cause burns or
frostbite. Contact with cryogenic liquid can cause frostbite and cryogenic burns.
Inhalation
: Respiratory system irritation after overexposure to high oxygen concentrations.
Ingestion
: Ingestion is not a normal route of exposure for gases. Contact with cryogenic liquid can
cause frostbite and cryogenic burns.
Medical conditions
: Acute or chronic respiratory conditions may be aggravated by overexposure to this gas.
aggravated by over-
exposure
See toxicological information (Section 11)

Page: 1/7
Oxygen
Section 3. Composition, Information on Ingredients
Name

CAS number % Volume
Exposure limits
Section 4. First aid measures
No action shall be taken involving any personal risk or without suitable training.If it is suspected that fumes are still present,
the rescuer should wear an appropriate mask or self-contained breathing apparatus.It may be dangerous to the person
providing aid to give mouth-to-mouth resuscitation.
Eye contact
: Check for and remove any contact lenses. Immediately flush eyes with plenty of water
for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical attention immediately.
Skin contact
: None expected.
Frostbite
: Try to warm up the frozen tissues and seek medical attention.
Inhalation
: Move exposed person to fresh air. If not breathing, if breathing is irregular or if
respiratory arrest occurs, provide artificial respiration or oxygen by trained personnel.
Loosen tight clothing such as a collar, tie, belt or waistband. Get medical attention immediately.
Ingestion
: As this product is a gas, refer to the inhalation section.
Section 5. Fire-fighting measures
Flammability of the product

: Non-flammable.
Products of combustion
: No specific data.
Fire hazards in the
: Extremely flammable in the presence of the following materials or conditions: reducing
presence of various
materials, combustible materials and organic materials.
substances
Fire-fighting media and

: Use an extinguishing agent suitable for the surrounding fire.
instructions
Apply water from a safe distance to cool container and protect surrounding area. If involved in fire, shut off flow immediately if it can be done without risk.
Contains gas under pressure. Contact with combustible material may cause fire. This material increases the risk of fire and may aid combustion. In a fire or if heated, a pressure increase will occur and the container may burst or explode.
Special protective
: Fire-fighters should wear appropriate protective equipment and self-contained breathing
equipment for fire-fighters
apparatus (SCBA) with a full face-piece operated in positive pressure mode.
Section 6. Accidental release measures
Personal precautions

: Immediately contact emergency personnel. Keep unnecessary personnel away. Use
suitable protective equipment (section 8). Eliminate all ignition sources if safe to do so.
Do not touch or walk through spilled material. Shut off gas supply if this can be done safely. Isolate area until gas has dispersed.
Environmental precautions
: Avoid dispersal of spilled material and runoff and contact with soil, waterways, drains
Methods for cleaning up
: 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
Handling

: High pressure gas. Do not puncture or incinerate container. Use equipment rated for
cylinder pressure. Close valve after each use and when empty. Store in tightly-closed container. Avoid contact with combustible materials. Protect cylinders from physical damage; do not drag, roll, slide, or drop. Use a suitable hand truck for cylinder movement.
Never allow any unprotected part of the body to touch uninsulated pipes or vessels that contain cryogenic liquids. Prevent entrapment of liquid in closed systems or piping without pressure relief devices. Some materials may become brittle at low temperatures Page: 2/7
Oxygen
: Keep container tightly closed. Keep container in a cool, well-ventilated area. Separate
from acids, alkalies, reducing agents and combustibles. 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
Engineering controls

: 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.
Personal protection
: 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 or dusts.
When working with cryogenic liquids, wear a full face shield.
: 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.
Respiratory
: 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.
The applicable standards are (US) 29 CFR 1910.134 and (Canada) Z94.4-93 : 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.
Insulated gloves suitable for low temperatures Personal protection in case : Self-contained breathing apparatus (SCBA) should be used to avoid inhalation of the
of a large spill
Product name
Oxygen
Consult local authorities for acceptable exposure limits.
Section 9. Physical and chemical properties
Molecular weight
: 32 g/mole
Molecular formula
Boiling/condensation point
: -183°C (-297.4°F)
Melting/freezing point
: -218.4°C (-361.1°F)
Critical temperature
: -118.15°C (-180.7°F)
Vapor density
: 1.1 (Air = 1)
Specific Volume (ft 3/lb)
: 12.0482
Gas Density (lb/ft 3)
Section 10. Stability and reactivity
Stability and reactivity
: The product is stable.
Incompatibility with various : Extremely reactive or incompatible with the following materials: oxidizing materials,
substances
reducing materials and combustible materials.
Hazardous decomposition
: Under normal conditions of storage and use, hazardous decomposition products should
products
Hazardous polymerization
: Under normal conditions of storage and use, hazardous polymerization will not occur.
Page: 3/7
Oxygen
Section 11. Toxicological information
Toxicity data
Other toxic effects on

: No specific information is available in our database regarding the other toxic effects of
Specific effects
Carcinogenic effects
: No known significant effects or critical hazards.
Mutagenic effects
: No known significant effects or critical hazards.
Reproduction toxicity
: No known significant effects or critical hazards.
Section 12. Ecological information
Aquatic ecotoxicity
Environmental fate
: Not available.
Environmental hazards
: This product shows a low bioaccumulation potential.
Toxicity to the environment
: Not available.
Section 13. Disposal considerations
Product removed from the cylinder must be disposed of in accordance with appropriate Federal, State, local
regulation.Return cylinders with residual product to Airgas, Inc.Do not dispose of locally.

Section 14. Transport information
Regulatory
UN number
Proper shipping
Packing group
Additional
information
information
DOT Classification UN1072
quantity
Yes.
Packaging
instruction
Passenger
aircraft
Quantity
limitation: 75
kg
Cargo aircraft
Quantity
limitation: 150
kg
Special
provisions
A52
Page: 4/7
Oxygen
TDG Classification UN1072
Explosive
Limit and
Limited
Quantity

ERAP Index
3000
Passenger
Carrying Ship
Index
50
Passenger
Carrying
Road or Rail
Index
75
Special
provisions
42
Classification
“Refer to CFR 49 (or authority having jurisdiction) to determine the information required for shipment of the
product.”

Section 15. Regulatory information
United States

U.S. Federal regulations
: TSCA 8(a) CDR Exempt/Partial exemption: This material is listed or exempted.
United States inventory (TSCA 8b): This material is listed or exempted.
SARA 302/304: No products were found.
SARA 311/312 Hazards identification: Fire hazard, Sudden release of pressure
State regulations
: Connecticut Carcinogen Reporting: This material is not listed.
Connecticut Hazardous Material Survey: This material is not listed.
Florida substances: This material is not listed.
Illinois Chemical Safety Act: This material is not listed.
Illinois Toxic Substances Disclosure to Employee Act: This material is not listed.
Louisiana Reporting: This material is not listed.
Louisiana Spill: This material is not listed.
Massachusetts Spill: This material is not listed.
Massachusetts Substances: This material is listed.
Michigan Critical Material: This material is not listed.
Minnesota Hazardous Substances: This material is not listed.
New Jersey Hazardous Substances: This material is listed.
New Jersey Spill: This material is not listed.
New Jersey Toxic Catastrophe Prevention Act: This material is not listed.
New York Acutely Hazardous Substances: This material is not listed.
New York Toxic Chemical Release Reporting: This material is not listed.
Pennsylvania RTK Hazardous Substances: This material is listed.
Page: 5/7
Oxygen
Rhode Island Hazardous Substances: This material is not listed.
WHMIS (Canada)
: Class A: Compressed gas.
Class C: Oxidizing material.
CEPA Toxic substances: This material is not listed.
Canadian ARET: This material is not listed.
Canadian NPRI: This material is not 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.
Section 16. Other information
United States
Label requirements

OXIDIZER.
CONTACT WITH COMBUSTIBLE MATERIAL MAY CAUSE FIRE.
CONTENTS UNDER PRESURE.
Do not puncture or incinerate container.
May cause severe frostbite.
LIQUID:OXIDIZER.
CONTACT WITH COMBUSTIBLE MATERIAL MAY CAUSE FIRE.
Extremely cold liquid and gas under pressure.
May cause severe frostbite.
Canada
Label requirements

: Class A: Compressed gas.
Hazardous Material
Information System (U.S.A.)
Flammability
Physical hazards
Fire hazard
Reactivity
Personal protection
National Fire Protection
Flammability
Association (U.S.A.)
Instability
Page: 6/7
Oxygen
Flammability
Instability
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.

Page: 7/7

Source: http://www.westpier.ca/documents/OXYGEN%20%20LIQUID.pdf

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