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1,1,2,2-TETRABROMOETHANEICSC: 1235
Acetylene tetrabromide
Tetrabromoacetylene
sym-Tetrabromoethane
October 2004
CAS #: 79-27-6
UN #: 2504
EC Number: 201-191-5

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames.    Use water spray, powder, foam, carbon dioxide.   

 PREVENT GENERATION OF MISTS!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Sore throat. Headache. Dizziness. Nausea. Abdominal pain.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness.  Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness.  Wear safety spectacles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion See Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in dry sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment. Personal protection: self-contained breathing apparatus. 

According to UN GHS Criteria

 

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

STORAGE
Separated from strong oxidants, strong bases and food and feedstuffs. Well closed. Ventilation along the floor. 
PACKAGING
Do not transport with food and feedstuffs. 
1,1,2,2-TETRABROMOETHANE ICSC: 1235
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOW HEAVY LIQUID WITH PUNGENT ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes on burning. This produces toxic and corrosive fumes including carbonyl bromide and hydrogen bromide. Reacts with strong bases and strong oxidants. Attacks some metals such as aluminium, magnesium and zinc. Attacks some plastics, rubber and coatings. 

Formula: C2H2Br4 / Br2CHCHBr2
Molecular mass: 345.7
Boiling point: 243.5°C
Melting point: 0°C
Relative density (water = 1): 2.96
Solubility in water: none
Vapour pressure, Pa at 24°C: 5.32
Relative vapour density (air = 1): 11.9
Auto-ignition temperature: 335°C
Octanol/water partition coefficient as log Pow: 2.8  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour 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 and liver. This may result in impaired functions. 

Inhalation risk
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C. 

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


OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.1 ppm as TWA 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
Muthmann's liquid is another synonym. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T+; R: 26-36-52/53; S: (1/2)-24-27-45-61 

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    See Also:
       Toxicological Abbreviations