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OXYGENICSC: 0138
October 1999
CAS #: 7782-44-7
UN #: 1072
EC Number: 231-956-9

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible but enhances combustion of other substances. Heating will cause rise in pressure with risk of bursting.    NO open flames, NO sparks and NO smoking. NO contact with flammables.    In case of fire in the surroundings, use appropriate extinguishing media.  In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position. 

   
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Dizziness. Sore throat. Visual disturbances. See Notes.    Refer for medical attention. 
Skin      
Eyes   Wear safety goggles.   
Ingestion      

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Ventilation. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 2.2; UN Subsidiary Risks: 5.1 

STORAGE
Fireproof. Separated from combustible substances and reducing agents. Cool. 
PACKAGING
 
OXYGEN ICSC: 0138
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ODOURLESS COMPRESSED GAS. 

Physical dangers
The gas is heavier than air. 

Chemical dangers
The substance is a strong oxidant. It reacts with combustible and reducing materials. This generates fire and explosion hazard. 

Formula: O2
Molecular mass: 32.0
Boiling point: -183°C
Melting point: -218.4°C
Solubility in water, ml/100ml at 20°C: 3.1
Relative vapour density (air = 1): 1.1
Octanol/water partition coefficient as log Pow: 0.65  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation. 

Effects of short-term exposure
The substance at very high concentrations is irritating to the respiratory tract. The substance may cause effects on the central nervous system, lungs and eyes. 

Inhalation risk
 

Effects of long-term or repeated exposure
Repeated or prolonged inhalation of high concentrations may cause effects on the lungs. 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
 

NOTES
Inhalation symptoms are characteristic of exposure to extremely high concentrations only.
See also ICSC0880 Oxygen refrigerated liquid (cryogenic liquid). 

ADDITIONAL INFORMATION
  EC Classification
Symbol: O; R: 8; S: (2)-17 

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    See Also:
       Toxicological Abbreviations
       OXYGEN (JECFA Evaluation)