六氯乙烷，分子式C₂Cl₆。

无色斜方有类似樟脑香味的针状结晶。易升华。不溶于水，溶于乙醇、乙醚、氯仿、苯和油类。

Hexachloroethane, also known as perchloroethane (PCA), C₂Cl₆, is a white crystalline solid at room temperature with a camphor-like odor. It has been used by the military in smoke compositions, such as base-eject smoke munitions (smoke grenades).