Potassium dicyanoaurate

Potassium dicyanoaurate
Names
	IUPAC name Potassium dicyanoaurate(I)
	Other names potassium cyanoaurate; potassium gold cyanide; potassium gold dicyanide
Identifiers
CAS Number	13967-50-5;
3D model (JSmol)	ionic form: Interactive image; coordination form: Interactive image;
Beilstein Reference	6235525
ChEBI	CHEBI:30057;
ChemSpider	19988798;
ECHA InfoCard	100.034.303
EC Number	237-748-4;
Gmelin Reference	37363
PubChem CID	159710;
UNII	54L0T2BQF5;
UN number	1588
CompTox Dashboard (EPA)	DTXSID8044549 ;
	InChI InChI=1S/2CN.Au.K/c21-2;;/q2-1;2*+1 Key: XTFKWYDMKGAZKK-UHFFFAOYSA-N;
	SMILES ionic form: [C-]#N.[C-]#N.[K+].[Au+]; coordination form: N#C[Au-]C#N.[K+];
Properties
Chemical formula	KAu(CN)2
Molar mass	288.101 g/mol
Appearance	white crystal
Density	3.45 g/cm3
Boiling point	decomposes
Solubility in water	140 g/L
Structure
Crystal structure	Rhombohedral, hR54, No. 148
Space group	R3
Lattice constant	a = 0.728 nm, b = 0.728 nm, c = 2.636 nm
Lattice volume (V)	1.2099 nm3
Formula units (Z)	9
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	toxic
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H290, H300, H310, H315, H317, H318, H330, H410
Precautionary statements	P260, P264, P273, P280, P284, P301+P310
Related compounds
Other anions	Potassium argentocyanide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Potassium dicyanoaurate (or potassium gold cyanide) is an inorganic compound with formula K[Au(CN)₂]. It is a colorless to white solid that is soluble in water and slightly soluble in alcohol. The salt itself is often not isolated, but solutions of the dicyanoaurate ion ([Au(CN)₂]⁻) are generated on a large scale in the extraction of gold from its ores.^[3]

^ ^a ^b ^c ^d Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). CRC Press. p. 4.82. ISBN 978-1439855119.
^ Greenwood, N. N.; & Earnshaw, A. (1997). Chemistry of the Elements (2nd Edn.), Oxford:Butterworth-Heinemann. ISBN 0-7506-3365-4.
^ Rosenzweig, A.; Cromer, D. T. (1959). "The Crystal Structure of KAu(CN)₂". Acta Crystallographica. 12 (10): 709–712. doi:10.1107/S0365110X59002109.

[crc1-1] Haynes, William M., ed. (2011). CRC Handbook of Chemistry and Physics (92nd ed.). CRC Press. p. 4.82. ISBN 978-1439855119.

[2] Greenwood, N. N.; & Earnshaw, A. (1997). Chemistry of the Elements (2nd Edn.), Oxford:Butterworth-Heinemann. ISBN 0-7506-3365-4.

[Acta-3] Rosenzweig, A.; Cromer, D. T. (1959). "The Crystal Structure of KAu(CN)₂". Acta Crystallographica. 12 (10): 709–712. doi:10.1107/S0365110X59002109.

[1]

[3]

Names

IUPAC name Potassium dicyanoaurate(I)
Other names potassium cyanoaurate^[1] potassium gold cyanide potassium gold dicyanide
Identifiers
CAS Number	13967-50-5
3D model (JSmol)	ionic form: Interactive image coordination form: Interactive image
Beilstein Reference	6235525
ChEBI	CHEBI:30057
ChemSpider	19988798
ECHA InfoCard	100.034.303
EC Number	237-748-4
Gmelin Reference	37363
PubChem CID	159710
UNII	54L0T2BQF5
UN number	1588
CompTox Dashboard (EPA)	DTXSID8044549
InChI InChI=1S/2CN.Au.K/c21-2;;/q2-1;2*+1 Key: XTFKWYDMKGAZKK-UHFFFAOYSA-N
SMILES ionic form: [C-]#N.[C-]#N.[K+].[Au+] coordination form: N#C[Au-]C#N.[K+]
Properties
Chemical formula	KAu(CN)₂
Molar mass	288.101 g/mol
Appearance	white crystal^[1]
Density	3.45 g/cm³^[1]
Boiling point	decomposes
Solubility in water	140 g/L^[1]
Structure
Crystal structure	Rhombohedral, hR54, No. 148
Space group	R3
Lattice constant	a = 0.728 nm, b = 0.728 nm, c = 2.636 nm
Lattice volume (V)	1.2099 nm³
Formula units (Z)	9
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	toxic
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H290, H300, H310, H315, H317, H318, H330, H410
Precautionary statements	P260, P264, P273, P280, P284, P301+P310
Related compounds
Other anions	Potassium argentocyanide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references