Tetrachloroethylene (Perchloroethylene, PCE), also known as perchloroethylene, is a colorless, transparent and free-flowing liquid with a characteristic ethereal odor. It is chemically stable, non-flammable and non-explosive, has excellent dissolving capacity for oils, fats and resins, and is a commonly used high-efficiency chlorinated hydrocarbon solvent.

1. Dry cleaning industry: Main clothing dry cleaning agent, used for dry cleaning and stain removal of various fabrics.
2. Metal processing: Metal degreasing, cleaning of precision parts, ultrasonic cleaning agent.
3. Chemical industry: Intermediate for organic synthesis, raw material for refrigerants (HCFC-123/124/125), fat and oil extractant, desulfurizer, heat transfer medium.
4. Others: Solvent for rubber and resin, cleaning agent for electronic components, etc.