Oxygen, refrigerated liquid
LOX
Liquid oxygen
O2
Molecular mass: 32.0
ICSC # 0880
CAS # 7782-44-7
RTECS # RS2060000
UN # 1073
EC # 008-001-00-8
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible but enhances combustion of other substances.
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NO open flames, NO sparks, and NO smoking.
NO contact with flammable substances.
NO contact with
reducing agents.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Risk of fire and explosionon contact withcombustible substances,reducing agents.
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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.
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Exposure
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•Inhalation
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Cough.
Dizziness.
Sore throat.
See Notes.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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ON CONTACT WITH LIQUID: FROSTBITE.
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Cold-insulating gloves.
Protective clothing.
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ON FROSTBITE: rinse with plenty of water, do NOT remove clothes.
Refer for medical attention.
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•Eyes
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See Skin.
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Safety goggles,
face shield.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Ventilation.
Remove all ignition sources.
Do NOT absorb in saw-dust or other combustible absorbents.
NEVER direct water jet on liquid.
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Fireproof.
Separated from
combustible and reducing substances.
Cool.
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Special insulated container.
O symbol
R: 8
S: 2-17
UN Hazard Class: 2.2
UN Subsidiary Risks: 5.1
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Important Data
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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.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation.
Inhalation Risk:
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.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: -183°C
Melting point: -218.4°C
Solubility in water, ml/100 ml at 20°C: 3.1
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Vapour pressure, kPa at -118°C: 5080
Relative vapour density (air = 1): 1.1
Octanol/water partition coefficient as log Pow: 0.65
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Environmental
Data
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N O T E S
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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.
Transport Emergency Card: TEC (R)-20S1073 or 20G3O
NFPA Code: H 3; F 0; R 0; OX
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ADDITIONAL INFORMATION
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ICSC: 0880
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OXYGEN (LIQUEFIED)
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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