1. Calcium carbide is an inorganic compound with the chemical formula CaC2 and is the main component of electric stone. It is a white crystalline powderial products are gray-black lumps with purple or gray cross-sections. It reacts violently with water immediately, generating acetylene and releasing heat. Calcium carbide is an important bachemical raw material, primarily used for producing acetylene gas. It is also used in organic synthesis, oxy-acetylene welding, and other applications.
2. Calcium carbide is used to produce acetylene gas, polyvinyl chloride, calcium cyanamide, dicyandiamide, steel desulfurizers, etc.; it is used in the electronics industry; and serves as a teaching reagent. Approximately 60% of calcium carbide is used in chemical production, while the remaining 40% is used for metal welding and cutting. A series of chemical products can be produced using calcium carbide as a raw material, such as PVC resin, vinyl alcohol, vinyl acetate, neoprene, butanol, octanol, tricyanoethylene, tetracyanoethylene, acetaldehyde, acetylene carbon black, and calcium cyanamide. The largest application is in the production of PVC resin, accounting for 60% of the chemical consumption of calcium carbide. Calcium carbide powder is irritating and can damage the skin and respiratory system.
