What is a Tetrachloroethylene (also known as perchloroethylene PCE) ?

Tetrachloroethylene (also known as perchloroethylene or PCE) is a colorless, volatile liquid with the chemical formula C₂Cl₄. It is primarily used as a solvent, particularly in dry cleaning and metal degreasing applications. It also serves as an intermediate in organic synthesis. Due to its excellent solvent properties, tetrachloroethylene efficiently removes oils and dirt, making it widely used in cleaning industries. It has been a common alternative to petroleum-based solvents in dry cleaning. However, its environmental impact raises concerns, as its release into the atmosphere can affect the ozone layer and contribute to air pollution. Prolonged exposure can also have adverse health effects, particularly on the nervous system and liver. As a result, many countries have implemented regulations to limit its use.

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