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OXYGEN (LIQUEFIED) ICSC: 0880
Date of Peer Review: April 2000

Oxygen, refrigerated liquid
LOX
Liquid oxygen
CAS # 7782-44-7 O2
RTECS # RS2060000 Molecular mass: 32.0
UN # 1073
EC Index # 008-001-00-8
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible but enhances combustion of other substances.
NO open flames, NO sparks, and NO smoking. NO contact with flammable substances. NO contact with reducing agents.
In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION Risk of fire and explosionon contact with combustible substances, reducing agents.

In case of fire: cool drums, etc., by spraying with water but avoid contact of the substance with water. Combat fire from a sheltered position.
EXPOSURE


Inhalation Cough. Dizziness. Sore throat. See Notes.

Fresh air, rest. Refer for medical attention.
Skin ON CONTACT WITH LIQUID: FROSTBITE.
Cold-insulating gloves. Protective clothing.
ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention.
Eyes See Skin.
Safety goggles, face shield.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.

SPILLAGE DISPOSAL PACKAGING & LABELLING
Ventilation. Remove all ignition sources. Do NOT absorb in saw-dust or other combustible absorbents. NEVER direct water jet on liquid.
Special insulated container.
EU Classification
Symbol: O
R: 8
S: (2-)-17
UN Classification
UN Hazard Class: 2.2
UN Subsidiary Risks: 5.1

EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-20S1073 or 20G3O
NFPA Code: H 3; F 0; R 0; OX
Fireproof. Separated from combustible and reducing substances. Cool.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
OXYGEN (LIQUEFIED) ICSC: 0880
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
LIQUEFIED GAS. COLOURLESS TO BLUE EXTREMELY COLD LIQUID

PHYSICAL DANGERS:
The gas is heavier than air.

CHEMICAL DANGERS:
The substance is a strong oxidant and reacts with combustible and reducing materials causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation.

EFFECTS OF SHORT-TERM EXPOSURE:
Rapid evaporation of the liquid may cause frostbite. The substance at very high concentrations is irritating to the respiratory tract. The substance may cause effects on the central nervous system.

PHYSICAL PROPERTIES
Boiling point: -183C
Melting point: -218.4C
Solubility in water, ml/100 ml at 20C: 3.1
Vapour pressure, kPa at -118C: 5080
Relative vapour density (air = 1): 1.1
Octanol/water partition coefficient as log Pow: 0.65
ENVIRONMENTAL DATA

NOTES
Work clothes saturated with oxygen may be a serious fire hazard. Do NOT use in the vicinity of a fire or a hot surface, or during welding. Inhalation symptoms are characteristic of exposure to extremely high concentrations only. Also consult ICSC #0138 Oxygen. Card has been partly updated in October 2005. See section Physical properties.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2005