This colorless, volatile liquid with a moderately sweet aroma is widely used as a solvent. Although it is not miscible with water, it is miscible with many organic solvents. It is widely used as a paint stripper and a degreaser. In the food industry, it has been used to decaffeinate coffee and tea as well as to prepare extracts of hops and other flavorings. Its volatility has led to its use as an aerosol spray propellant and as a blowing agent for polyurethane foams.
It is a clear non-flammable liquid with a sweet smell. Perhaps the greatest use of TCE has been as a degreaser for metal parts.
Perchloroethylene (also called PCE) is a colorless, nonflammable manmade liquid that evaporates when exposed to air and dissolves slightly in water. . More than 80% of the PCE produced is used in the dry cleaning industry.