Tetrachloroethylene Also known as: Perchloroethylene Abbreviation: PCE English name: Tetrachloroethylene Molecular formula: C?Cl? Molecular weight: 165.82 CAS number: 127-18-4 EINECS number: 204-825-9 Density: 1.63 Melting point: -22.2°C Boiling point: 121.2°C Appearance: Colorless liquid Solubility: Insoluble in water, miscible with ethanol and most organic solvents. Uses: 1. Primarily used as an organic solvent, dry cleaning agent, metal degreasing solvent, and raw material in fluorine chemical production. 2. Tetrachloroethylene can be used as a fat extractant, intermediate for fluorinated refrigerants, etc.