The chemical compound Trichloroethylene (TCE)is a chlorinated hydrocarbon commonly used as an industrial solvent. It is a clear non-flammable liquid with a sweet smell. TCE is an effective solvent for a variety of organic compounds. It was first widely produced in the 1920s. Trichloroethylene (TCE)major use is to extract vegetable oils from plant materials such as soy, coconut, and palm. Other uses in the food industry included coffee decaffeination and the preparation of flavoring extracts from hops and spices.