Perchloroethylene, also known as perchloroethylene, is an organic compound with the chemical formula C2Cl4 and is a colorless liquid. Chinese name: tetrachloroethylene Foreign name: tetrachloroethene Alias: perchloroethylene Chemical formula C2Cl4 Molecular weight 165.833 CAS No. 127-18-4 EINECS No. 204-825-9 Melting point-22 ℃ Boiling point 121 ℃ Water solubility Density1.622 g/cm³ Appearance Colorless liquid Safety Description...