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

Daily Visual Balance Check

What is the Correct Way to Check Repeatability in Balances?

How to ensure accurate weighing results every day?

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