tetrachloorethaan

Tetrachloroethane refers to two structural isomers of the compound with the chemical formula C2H2Cl4. These are 1,1,1,2-tetrachloroethane and 1,1,2,2-tetrachloroethane. Both are chlorinated hydrocarbons.

1,1,2,2-tetrachloroethane is a colorless liquid with a sweet odor. It is denser than water and has limited solubility in it. Historically, it was used as a solvent for oils, fats, waxes, and resins, and as an intermediate in the production of other chlorinated hydrocarbons like trichloroethylene and tetrachloroethylene. Due to its toxicity and environmental concerns, its industrial use has significantly declined. It is classified as a hazardous substance and exposure can lead to liver and kidney damage.

1,1,1,2-tetrachloroethane is also a colorless liquid. Its properties are similar to its isomer. It has also found some use as a solvent and intermediate. However, it is less common than 1,1,2,2-tetrachloroethane and faces similar toxicity and environmental restrictions.

Both isomers can be produced through the chlorination of acetylene or ethylene. Their decomposition, especially under heat or in the presence of certain metals, can release toxic fumes, including phosgene. Due to their persistence in the environment and potential health risks, both forms of tetrachloroethane are subject to strict regulations regarding their production, use, and disposal.