Trichloroethylene (TCE)

IUPAC Name: 1,1,2-trichloroethene

MCL: 0.005 ppm

Source: Used as a solvent and degreasing agent. Has many commercial uses and is used as a dry-cleaning agent. Commonly used in organic synthesis.

Summary: Trichloroethylene (TCE) is a chlorinated hydrocarbon used widely as a degreaser for metal parts and as an industrial solvent. TCE is also used as a dry-cleaning agent and is found in many commercial products. It may produced naturally in the ocean by algae. Trichloroethylene may be used as an intermediate in the organic synthesis of hydrofluorocarbons and monochloroacetic acid among others. The EPA has been phasing out TCE for many years as an aerosol and spot cleaner. It exists as a colorless liquid at room temperature and has a solubility in water of 1,280 mg/L at 25 C. It has a density of 1.4642 g/mL at 20 C. TCE is classified by the EPA as a Hazardous Air Pollutant (HAPs). A Koc value of 101 predicts high mobility within soil that may leach to groundwater. Volatilization from soil and water are expected to be a major fate process. This volatilization may also lead to vapor intrusions in houses and commercial buildings.

GHS Hazard Statement: H305, H315, H317, H319, H332, H335, H336, H341, H350, H360, H361, H370, H372, H401, H412, GHS07, GHS08