ICSC 0880 - OXYGEN (LIQUEFIED)

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OXYGEN (LIQUEFIED)

ICSC: 0880
_{April 2000}

Oxygen, refrigerated liquid
LOX
Liquid oxygen

CAS No: 7782-44-7
RTECS No: RS2060000
UN No: 1073
EC No: 008-001-00-8

O₂
Molecular mass: 32.0

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.	O Symbol R: 8 S: (2-)17 UN Hazard Class: 2.2 UN Subsidiary Risks: 5.1	Special insulated container.

EMERGENCY RESPONSE	SAFE 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.

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

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.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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