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Trichloroethylene (TCE) is a halocarbon with the formula C 2 HCl 3, commonly used as an industrial metal degreasing solvent. It is a clear, colourless, non-flammable, volatile liquid with a chloroform -like pleasant mild smell [ 3 ] and sweet taste. [ 9 ]
Between 1975 and 1985, the water supply of Marine Corps Base Camp Lejeune was contaminated with trichloroethylene and other volatile organic compounds. [10]In 1986, and later again in 2009, 2 plumes containing trichloroethylene was found on Long Island, New York due to Northrop Grumman's Bethpage factories that worked in conjunction with the United States Navy during the 1930s and 1940s.
TCE may still occasionally be used for spot cleaning of difficult stains. By the mid-1930s, the dry cleaning industry had started to use tetrachloroethylene (also called perchloroethylene or PCE) as the solvent. It has excellent cleaning power and is nonflammable and compatible with most garments.
By September 2004, surface soil and surface water levels of TCE and other chemicals were within normal levels. As a result, the site has been deemed suitable for commercial re-use, and a shopping plaza was constructed. That plaza is now supplied by Portland's city water and does not use water from the former well. [6]
Some haloalkanes are still widely used for industrial cleaning, such as methylene chloride (dichloromethane), and as refrigerants, such as R-134a (1,1,1,2-tetrafluoroethane). Haloalkenes have also been used as solvents, including perchloroethylene (Perc, tetrachloroethene), widespread in dry cleaning, and trichloroethylene (TCE, 1,1,2 ...
Trichloroethylene is known as Trilene. It is a volatile liquid introduced as an anaesthetic agent in 1934. Trilene was used during labour. It was inhaled via a mouthpiece before each contraction. This provided pain relief rather than full anaesthesia. This bottle of trichloroethylene was made in England by Imperial Chemical Industries Limited.
Since 1952, Hughes Aircraft regularly used trichloroethylene, a widely used degreasing solvent, to clean aircraft parts, and regularly disposed of used solvents by pouring these chemicals into pits, pouring it on the ground into the desert, and dumping it in drains until the early 1980s. In 1981, studies conducted by the Pima County Health ...
Carbon tetrachloride was the first chlorinated solvent to be used in dry-cleaning and was used until the 1950s. [46] It had the downsides of being corrosive to the dry-cleaning equipment and causing illness among dry-cleaning operators, and was replaced by trichloroethylene , tetrachloroethylene [ 46 ] and methyl chloroform (trichloroethane).