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Tetrachloroethene is a manufactured chemical that is widely used in the dry-cleaning of fabrics, including clothes. It is also used for degreasing metal parts and in manufacturing other chemicals.
As nouns the difference between perchloroethylene and tetrachloroethylene. is that perchloroethylene is an alternative name for tetrachloroethene, a non-combustible solvent commonly used in dry cleaning while tetrachloroethylene is tetrachloroethylene.
Basically, when spilled into the environment, part of the spilled PCE will evaporate, while another part will infiltrate through the ground into the subsurface. Air: Once in air, PCE was shown to be oxidized with a half life of 96 days.
Perchloroethylene is used in aerosol formulations for the automotive aftermarket, particularly for brake cleaning, as well as water repellents for garments, spot removers and silicone lubricants. It can be used as an insulating fluid in some electrical transformers as a substitute for polychlorinated biphenyls (PCBs).