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BROMOFORM
ICSC: 0108
Peer-Review Status: 01.04.2009 Validated
Tribromomethane
Methenyl tribromide
Methyl tribromide 
CAS #: 75-25-2 RTECS #: PB5600000
UN #: 2515
EC #: 602-007-00-X
EINECS #: 200-854-6
    Formula: CHBr3
Molecular mass: 252.7

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION      
 
EXPOSURE      
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
PACKAGING & 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.  Do not transport with food and feedstuffs.
Marine pollutant. 
EC Classification
Symbol: T, N; R: 22-23-36/38-51/53; S: (1/2)-28-45-61-63 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 
GHS Classification
Signal: 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 
excl mark;warncancer;health haz

EMERGENCY RESPONSE SAFE 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. 

IMPORTANT DATA
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. 

Occupational exposure limits
TLV: 0.5ppm as TWA; (skin); A3 (confirmed animal carcinogen with unknown relevance to humans); (ACGIH 2009).
MAK: Carcinogen category: 3B; (DFG 2008). 

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

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

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. 

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


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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 
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.
Card has been partially updated in April 2010: see EU Classification. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
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.


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