Tags: Chemical Compound, Chemical Substance.
Calcium silicide (CaSi2) also called calcium disilicide is an inorganic compound a silicide of calcium. It is a whitish or dark grey to black solid matter with melting point 1033°C. It is insoluble in water but may decompose when subjected to moisture evolving hydrogen and producing calcium hydroxide. Decomposes in hot water. It is flammable and may ignite spontaneously in air.