1,1,2,2-Tetrachloroethane

1,1,2,2-Tetrachloroethane^[1]


IUPAC name	1,1,2,2-Tetrachloroethane
Other names	s-Tetrachloroethane Acetylene tetrachloride R-130 TeCA
Identifiers
CAS number	79-34-5
PubChem	6591
SMILES	C(C(Cl)Cl)(Cl)Cl
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
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and 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.

Additional recommended knowledge

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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]

References

^ ^a ^b Merck Index, 11th Edition, 9125.
^ 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.
^ ^a ^b Tetrachloroethane at U.S. EPA