Chemical industrial products is gray, brown or black solid, including calcium carbide higher is purple.
Use calcium carbide used in chemical industry production accounted for about 60%, other 40% used in metal welding and cutting. With calcium carbide as raw material can produce a series of chemical products, such as PVC resin, poly (vinyl alcohol), acetic acid ethylene, neoprene and butanol, xinchun, three cyanogen ethylene, four cyanogen ethylene, aldehyde, acetylene black carbon, nitrogen, lime. And of the most is the production of PVC resin, accounting for 60% of the chemicals used calcium carbide consumption. Calcium carbide powder stimulating, can damage skin and respiratory system.