perchloroeteeni

Perchloroeteeni, also known as tetrachloroethene or PCE, is a synthetic chlorinated hydrocarbon with the chemical formula C2Cl4. It is a colorless liquid with a characteristic sweet odor and is non-flammable. PCE is widely used in the dry cleaning industry as a solvent due to its ability to dissolve oils, greases, and waxes. It is also employed as a degreasing agent in metal cleaning and as a component in some industrial solvents and chemical intermediates.

Due to its environmental persistence and potential health risks, the use of perchloroeteeni is regulated in many countries. Exposure can occur through inhalation, skin contact, or ingestion. Inhalation of PCE vapors can lead to symptoms such as dizziness, headache, nausea, and in high concentrations, central nervous system depression. Chronic exposure has been linked to liver and kidney damage, as well as an increased risk of certain cancers.

Environmental contamination by PCE is a concern, primarily from industrial releases and improper disposal. It can leach into groundwater and soil, posing risks to drinking water supplies and ecosystems. Remediation efforts for PCE-contaminated sites often involve techniques such as soil vapor extraction, air stripping, and in-situ chemical oxidation. Research continues into safer alternatives for applications where PCE is currently used.

---