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1,1,2,2-TETRACHLOROETHANEICSC: 0332
April 2017
CAS #: 79-34-5Acetylene tetrachloride
sym-Tetrachloroethane
1,1-Dichloro-2-2,dichloroethane
UN #: 1702
EINECS #: 201-197-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.    NO contact with incompatible substances. See Chemical Dangers.    In case of fire in the surroundings, use appropriate extinguishing media.   

 STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat. Headache. Nausea. Vomiting. Dizziness. Drowsiness. Convulsions. Unconsciousness.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer immediately for medical attention. 
Skin MAY BE ABSORBED! Redness. Dry skin. Further see Inhalation.  Protective gloves. Protective clothing.  Wear protective gloves when administering first aid. Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention . 
Eyes Redness. Pain.  Wear face shield or eye protection in combination with breathing protection.  Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer for medical attention. 
Ingestion Abdominal pain. Nausea. Vomiting. Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Refer immediately for medical attention. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
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 covered containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

skull;toxiccancer;health haz
DANGER
Toxic if swallowed or if inhaled
Causes skin and eye irritation
May cause respiratory irritation
May cause drowsiness or dizziness
May cause damage to liver
May cause damage to liver through prolonged or repeated exposure
Suspected of causing cancer
Suspected of causing genetic defects
Toxic to aquatic life 

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

STORAGE
Separated from strong bases, alkali metals and food and feedstuffs. Well closed. Cool. Keep in the dark. Ventilation along the floor. 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. 
1,1,2,2-TETRACHLOROETHANE ICSC: 0332
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes on heating and under the influence of air, UV light and moisture. This produces toxic and corrosive gases including hydrogen chloride and phosgene. Reacts violently with alkali metals, strong bases and powdered metals. This produces toxic and corrosive gases. Attacks plastics and rubber. 

Formula: C2H2Cl4 / CHCl2CHCl2
Molecular mass: 167.9
Boiling point: 146°C
Melting point: -42,5°C
Relative density (water = 1): 1.59
Solubility in water, g/100ml at 20°C: 0.29
Vapour pressure, Pa at 20°C: 647
Relative vapour density (air = 1): 5.8
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.03
Viscosity: 1.11 mm²/s at 20°C
Octanol/water partition coefficient as log Pow: 2.39  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its vapour, through the skin 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, liver and kidneys. This may result in central nervous system depression and impaired functions. Exposure could cause unconsciousness. Exposure could cause death. 

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

Effects of long-term or repeated exposure
The substance defats the skin, which may cause dryness or cracking. The substance may have effects on the central nervous system and liver. This may result in impaired functions. This substance is possibly carcinogenic to humans. May cause heritable genetic damage to human germ cells. 


Occupational exposure limits
TLV: 1 ppm as TWA; (skin); A3 (confirmed animal carcinogen with unknown relevance to humans).
MAK: 7.0 mg/m3, 1 ppm; peak limitation category: II(2); skin absorption (H); carcinogen category: 3B; pregnancy risk group: D 

ENVIRONMENT
The substance is toxic to aquatic organisms. It is strongly advised not to let the chemical enter into the environment. 

NOTES
The odour warning when the exposure limit value is exceeded is insufficient.
Do NOT use in the vicinity of a fire or a hot surface, or during welding. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T+, N; R: 26/27-51/53; S: (1/2)-38-45-61 

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    See Also:
       Toxicological Abbreviations
       1,1,2,2-Tetrachloroethane  (SIDS)