Tags: Chemical Compound, Chemical Substance.
Calcium cyanide also known as black cyanide is an inorganic compound with the formula Ca(CN)2. It is a white solid although it is rarely observed in pure form. Commercial samples can be black-gray. It is the calcium salt of cyanide. It hydrolyses readily (even on moist air) to release hydrogen cyanide. Like other similar cyanides it is very toxic.