- 聚氯乙烯 jùlǜyǐxī polyvinyl chloridepolyvinyl chloride (PVC)
- 三氯乙烯 sānlǜyǐxī trichloroethyleneA colorless, non-flammable liquid used as a solvent for fats and coatings. Derived by heating tetrachloroethylene with lime, it is insoluble in water but dissolves in ethanol and ether.
- 四氯乙烯 sìlǜyǐxī tetrachloroethylene