Hexachloroethane, also known by its systematic name perchloroethane, is a chlorinated hydrocarbon and a chlorinated alkane that appears as a white or colorless crystalline solid at room temperature, with a distinctive camphor-like odor. Hexachloroethane has various industrial uses, including in military smoke compositions, metal and alloy production, and as an ingredient in some specialized pesticides and lubricants. Hexachloroethane is also known to be toxic and can cause significant adverse health effects in humans upon exposure.