Hexachloroethane is primarily used as a fumigant to control pests in stored grains and as a degassing agent in the aluminum and metal industries to remove gas bubbles during the casting process. It also serves as a component in smoke-producing devices, such as military smoke screens and pyrotechnics, due to its ability to generate dense smoke when burned. Additionally, it has been utilized in veterinary medicine as an anthelmintic to treat liver fluke infections in livestock. However, its use has declined in many applications due to environmental and health concerns associated with its toxicity and persistence in the environment.