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style="background: #F8EABA; text-align: center;" colspan="2" | Identifiers
CAS number 79-34-5 YesY
PubChem 6591
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style="background: #F8EABA; text-align: center;" colspan="2" | Properties
Molecular formula C2H2Cl4
Molar mass 167.85 g mol−1
Appearance Clear liquid
Density 1.59 g/cm3
Melting point

-44 °C, 229 K, -47 °F

Boiling point

146.5 °C, 420 K, 296 °F

Solubility in water 1 g/350 mL
 YesY (what is this?)  (verify)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

1,1,2,2-Tetrachloroethane is a chlorinated derivative of ethane. It has the highest solvent power of any chlorinated hydrocarbon.[1] As a refrigerant, it is used under the name R-130.

It was once widely used as a solvent and as an intermediate in the industrial production of trichloroethylene, tetrachloroethylene, and 1,2-dichloroethylene.[2] However, 1,1,2,2-tetrachloroethane is no longer used much in the United States due to concerns about its toxicity.[3]

Chronic inhalation exposure in humans results in jaundice and an enlarged liver, headaches, tremors, dizziness, numbness, and drowsiness and the U.S. Environmental Protection Agency as a Group C possible human carcinogen.[3]

See also


  1. 1.0 1.1 Merck Index, 11th Edition, 9125.
  2. Agency for Toxic Substances and Disease Registry (ATSDR). Toxicological Profile for 1,1,2,2-Tetrachloroethane (Update). U.S. Public Health Service, U.S. Department of Health and Human Services, Atlanta, GA. 1996.
  3. 3.0 3.1 Tetrachloroethane at U.S. EPA

de:1,1,2,2-Tetrachlorethan fr:1,1,2,2-tétrachloroéthane hu:1,1,2,2-Tetraklóretán nl:1,1,2,2-tetrachloorethaan pl:1,1,2,2-Tetrachloroetan fi:1,1,2,2-tetrakloorietaani sv:Tetrakloretan