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DIBROMODIFLUOROMETHANEICSC: 1419
November 2003
CAS #: 75-61-6Difluorodibromomethane
Fluorocarbon 12-B2
UN #: 1941
EINECS #: 200-885-5

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.        In case of fire in the surroundings, use appropriate extinguishing media.   

   
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat. Laboured breathing. Shortness of breath. Confusion. Drowsiness. Unconsciousness.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention. See Notes. 
Skin   Protective gloves.  Rinse and then wash skin with water and soap. 
Eyes   Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.   

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Ventilation. Do NOT let this chemical enter the environment. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 9; UN Pack Group: III 

STORAGE
See Chemical Dangers. 
PACKAGING
 
DIBROMODIFLUOROMETHANE ICSC: 1419
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS GAS OR LIQUID WITH CHARACTERISTIC ODOUR. 

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

Chemical dangers
Decomposes on contact with hot surfaces or flames. This produces toxic and corrosive gases including hydrogen bromide and hydrogen fluoride. Reacts with alkali metals, powdered aluminium, magnesium and zinc. 

Formula: CBr2F2
Molecular mass: 209.8
Boiling point: 22.8°C
Melting point: -101.1°C
Density (gas): 8.7 kg/m³
Density (for liquid): 2.27 g/cm³
Solubility in water: none
Vapour pressure, kPa at 20°C: 83
Relative vapour density (air = 1): 7.2
Octanol/water partition coefficient as log Pow: 1.99  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the respiratory tract. Inhalation of high levels may cause lung oedema. See Notes. The substance may cause effects on the central nervous system. Exposure could cause lowering of consciousness. 

Inhalation risk
A harmful concentration of this gas in the air will be reached very quickly on loss of containment. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
TLV: 100 ppm as TWA 

ENVIRONMENT
This substance may be hazardous to the environment. Special attention should be given to its impact on the ozone layer. 

NOTES
Check oxygen content before entering area.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation is therefore essential.
Chlorofluorocarbons are known to cause effect on the cardiovascular system. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations