Trichloroethylene (TCE) is an organic compound with the formula C₂HCl₃. It’s a colorless, volatile liquid with a sweet odor. TCE was widely used as an industrial solvent and cleaning agent, but its use has declined significantly due to its environmental and health risks.

Properties of Trichloroethylene

Physical Properties:
- Colorless liquid
- Sweet odor
- Volatile
- Density greater than water
Chemical Properties:
- Good solvent for many organic compounds
- Stable under normal conditions
- Decomposes at high temperatures to form toxic products

Past Applications of Trichloroethylene

Industrial Solvent: Used in various industries for degreasing, cleaning, and as a solvent for paints, varnishes, and adhesives.
Dry Cleaning: Employed in the dry cleaning industry.
Medical Uses: Historically used as an anesthetic.

Environmental and Health Concerns

Toxicity: Exposure to TCE can lead to a variety of health problems, including liver and kidney damage, nerve damage, and cancer.
Environmental Pollution: TCE is a persistent organic pollutant that can contaminate groundwater and soil. It can also contribute to air pollution.