出典:Wikipedia
出典:『Wikipedia』 (2011/05/18 06:29 UTC 版)
Calcium carbide is a chemical compound with the chemical formula of CaC2. The pure material is colorless, however pieces of technical grade calcium carbide are grey or brown and consists of only 80-85% of CaC2(the rest is CaO, Ca3P2, CaS, Ca3N2, SiC, etc.). Because of presence of PH3, NH3, and H2S it has very unpleasent smell. Its main use industrially is in the production of acetylene and calcium cyanamide.