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BROMOCHLORODIFLUOROMETHANE ICSC: 0635
June 1997
Freon 12 B 1
R 12 B 1
Halon 1211
PDF for printing Explanation of fields
CAS No: 353-59-3
RTECS No: PA5270000
UN No: 1974
    (cylinder)
CBrClF2
Molecular mass: 165.4

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible. Heating will cause rise in pressure with risk of bursting. Gives off irritating or toxic fumes (or gases) in a fire.   In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION     In case of fire: keep cylinder cool by spraying with water. Combat fire from a sheltered position.
 
EXPOSURE      
Inhalation Drowsiness. Unconsciousness. Ventilation. Fresh air, rest. Artificial respiration if indicated. Refer for medical attention.
Skin ON CONTACT WITH LIQUID: FROSTBITE. Cold-insulating gloves. ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention.
Eyes ON CONTACT WITH LIQUID: FROSTBITE. Face shield. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion      

SPILLAGE DISPOSAL PACKAGING & LABELLING
Ventilation. Do NOT let this chemical enter the environment. UN classification
UN Hazard Class: 2.2


EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-20G39 Fireproof if in building.

IMPORTANT DATA
Physical State; Appearance
LIQUEFIED COMPRESSED GAS, WITH CHARACTERISTIC ODOUR.

Physical dangers
The gas is heavier than air and may accumulate in low ceiling spaces causing deficiency of oxygen.

Chemical dangers
The substance decomposes on contact with open flames or very hot surfaces, producing toxic gases, including phosgene, hydrogen fluoride, hydrogen chloride, hydrogen bromide.

Occupational exposure limits
TLV not established.
MAK not established.

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

Inhalation risk
On loss of containment this liquid evaporates very quickly causing supersaturation of the air with serious risk of suffocation when in confined areas.

Effects of short-term exposure
Rapid evaporation of the liquid may cause frostbite. The substance may cause effects on the cardiovascular system, resulting in cardiac disorders.


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: -4°C
Melting point: -160.5°C
Solubility in water: none
Relative vapour density (air = 1): 5.7
Octanol/water partition coefficient as log Pow: 2.1
This substance may be hazardous to the environment; special attention should be given to its impact on the ozone layer.

NOTES
High concentrations in the air cause a deficiency of oxygen with the risk of unconsciousness or death.
Check oxygen content before entering area.
Do NOT use in the vicinity of a fire or a hot surface, or during welding.

IPCS
International
Programme on
Chemical Safety
WHO ILO UNEP EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.

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