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BROMOFORMICSC: 0108
April 2009
CAS #: 75-25-2Tribromomethane
Methenyl tribromide
Methyl tribromide
UN #: 2515
EINECS #: 200-854-6

  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. Further see Ingestion.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin Redness. See Ingestion.  Protective gloves. Protective clothing.  Rinse and then wash skin with water and soap. Seek medical attention if you feel unwell. 
Eyes Watering of the eyes. Redness. Pain.  Wear safety spectacles or eye protection in combination with breathing protection.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion Headache. Dizziness. Drowsiness.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Ventilation. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer. 

According to UN GHS Criteria

excl mark;warncancer;health haz
WARNING
Harmful if swallowed
Causes eye irritation
Causes skin irritation
May cause respiratory irritation
May cause damage to the nervous system and liver
May cause damage to liver through prolonged or repeated exposure
Harmful to aquatic life
Harmful to aquatic life with long lasting effects 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 

STORAGE
Separated from strong bases, oxidants, metals and food and feedstuffs. Keep in the dark. Ventilation along the floor. Store only if stabilized. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. 
PACKAGING
Do not transport with food and feedstuffs.
Marine pollutant. 
BROMOFORM ICSC: 0108
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. TURNS YELLOW ON EXPOSURE TO LIGHT AND AIR. 

Physical dangers
No data. 

Chemical dangers
Decomposes on heating. This produces toxic and corrosive fumes including hydrogen bromide and bromine. Reacts violently with oxidants and bases. Reacts with powdered metals. This generates fire and explosion hazard. Attacks some forms of plastic, rubber and coatings. 

Formula: CHBr3
Molecular mass: 252.7
Boiling point: 149.5°C
Melting point: 8.3°C
Relative density (water = 1): 2.9
Solubility in water, g/100ml at 20°C: 0.1 (poor)
Vapour pressure, kPa at 20°C: 0.67
Relative vapour density (air = 1): 8.7
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.05
Octanol/water partition coefficient as log Pow: 2.38
Viscosity: 0.74 (calculated) mm²/s at 15°C 


EXPOSURE & HEALTH EFFECTS

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

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

Inhalation risk
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. 

Effects of long-term or repeated exposure
The substance may have effects on the liver and kidneys. 


Occupational exposure limits
TLV: 0.5 ppm as TWA; A3 (confirmed animal carcinogen with unknown relevance to humans).
MAK: carcinogen category: 3B 

ENVIRONMENT
The substance is harmful to aquatic organisms. The substance may cause long-term effects in the aquatic environment. It is strongly advised not to let the chemical enter into the environment. 

NOTES
An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T, N; R: 22-23-36/38-51/53; S: (1/2)-28-45-61-63 

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    See Also:
       Toxicological Abbreviations
       Bromoform  (IARC Summary & Evaluation, Volume 52, 1991)
       Bromoform  (IARC Summary & Evaluation, Volume 71, 1999)