PERCHLOETHYLENE

Perchloroethylene, also known as tetrachloroethylene, is a chlorocarbon chemical compound with the chemical formula C₂Cl₄. Here's some information about perchloroethylene:

Physical and Chemical Properties:

• Chemical formula: C₂Cl₄
• Appearance : Colorless liquid at room temperature.
• Boiling point : Approximately 121 °C.
• Melting point: Approximately -22°C.
• Solubility: Low solubility in water, miscible with many organic solvents.

Common Uses :

• Dry cleaning : Perchloroethylene is widely used as a solvent in dry-cleaning operations.
• Textile industry: Used in textile treatment and industrial degreasing.
• Chemical processes: Used as a solvent in certain chemical processes, notably in the pharmaceutical industry.
• Metal Stripping: Sometimes used in metal stripping.

Environmental properties and concerns :

• Toxicity: Perchloroethylene is considered potentially toxic to humans, and prolonged inhalation can cause health problems.
• Impact on Ozone: It has been identified as a compound contributing to the destruction of the stratospheric ozone layer.
• Evaporation: Perchloroethylene is volatile and may contribute to air pollution.

Regulations and precautions for use :

• Substitution: In many regions, it is gradually being replaced by more environmentally-friendly solvents in certain applications.

The use of perchloroethylene is increasingly regulated due to its potentially harmful effects. Regulations vary from region to region, and it is advisable to follow applicable local guidelines and standards when using it. Due to environmental and health concerns, many companies are looking for safer, more sustainable alternatives.