Calcium cyanide

Calcium cyanide
Names
	IUPAC name calcium dicyanide
	Systematic IUPAC name calcium dicyanide
Identifiers
CAS Number	592-01-8 ;
3D model (JSmol)	Interactive image;
ChemSpider	11102;
ECHA InfoCard	100.008.856
EC Number	209-740-0;
PubChem CID	11590;
UNII	07DFJ2NTDD ;
CompTox Dashboard (EPA)	DTXSID6023941 ;
	InChI InChI=1S/2CN.Ca/c21-2;/q2-1;+2;
	SMILES [Ca+2].[C-]#N.[C-]#N;
Properties
Chemical formula	Ca(CN)2
Molar mass	92.1128 g/mol
Appearance	white powder
Odor	hydrogen cyanide
Density	1.853 (20 °C)
Melting point	640 °C (1,184 °F; 913 K) (decomposes)
Solubility in water	soluble
Solubility	soluble in alcohol, weak acids
Structure
Crystal structure	rhombohedric
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Highly Toxic
NFPA 704 (fire diamond)	3 0 1
Autoignition; temperature	Non-flammable
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	39 mg/kg rat, oral
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Calcium cyanide is the inorganic compound with the formula Ca(CN)₂. It is the calcium salt derived from hydrocyanic acid. It is a white solid, although the pure material is rarely encountered. It slowly hydrolyses in solution or moist air to release hydrogen cyanide and is very toxic.