Gold(I) cyanide

Gold(I) cyanide
Names
	Other names Gold monocyanide
Identifiers
CAS Number	506-65-0 [PubChem];
3D model (JSmol)	Interactive image;
ChemSpider	61479;
ECHA InfoCard	100.007.318
EC Number	208-049-1;
PubChem CID	68172;
CompTox Dashboard (EPA)	DTXSID1060136 ;
	InChI InChI=1S/CN.Au/c1-2;/q-1;+1 Key: IZLAVFWQHMDDGK-UHFFFAOYSA-N;
	SMILES [Au+].[C-]#N;
Properties
Chemical formula	CAuN
Molar mass	222.985 g·mol−1
Appearance	dark yellow powder
Density	7.12 g·cm−3
Solubility in water	insoluble
Structure
Crystal structure	hexagonal
Space group	P6mm (No. 183)
Lattice constant	a = 340 pm, c = 509 pm
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H300, H310, H330, H410
Related compounds
Other cations	Copper(I) cyanide; Silver cyanide
Related compounds	Gold(III) cyanide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Gold(I) cyanide is the inorganic compound with the chemical formula AuCN. It is the binary cyanide of gold(I). It is an odourless, tasteless yellow solid. Wet gold(I) cyanide is unstable to light and will become greenish. Gold(I) cyanide itself is only of academic interest, but its derivative dicyanoaurate is an intermediate in gold cyanidation, the extraction of gold from its ores.