Trichloroethene, also known as trichloroethylene or TCE, is a chemical solvent commonly used in industrial processes. It is a colorless, volatile and flammable liquid with a sweet, chloroform-like smell. There are various synonyms for trichloroethene including trichloroethylene, tri, TCE, ethene trichloride, and 1,1,2-trichloroethylene. It is also known by the trade names Triklone, Vitran, and Trimar. While trichloroethene has been widely used in industrial processes, studies have shown that it can have harmful effects on human health. As a result, many countries have restricted or banned the use of trichloroethene.