Sodium tetracyanoaurate (III)

Tetracyanoaurate
Tetracyanoaurate
Are common
Systematic ; name	Sodium tetracyanoaurate (III)
Chem. formula	Na [Au (CN) 4 ]
Physical properties
condition	hydrate - colorless crystals
Molar mass	324.03 g / mol
Classification
Reg. CAS number
PubChem
Reg. EINECS number
Smiles
Inchi
ChemSpider

Sodium tetracyanoaurate (III) is an inorganic compound, a complex salt of sodium , gold and hydrocyanic metals with the formula Na [Au (CN) ₄ ], dissolves in water, forms crystalline hydrate - colorless crystals.

Content

Getting

Mixing concentrated solutions of gold (III) chloride and sodium cyanide :

{\mathsf {Au_{2}Cl_{6}+8NaCN\ {\xrightarrow {}}\ 2Na[Au(CN)_{4}]+6NaCl}}

{\ displaystyle {\ mathsf {Au_ {2} Cl_ {6} + 8NaCN \ {\ xrightarrow {}} \ 2Na [Au (CN) _ {4}] + 6NaCl}}}

Physical Properties

Sodium tetracyanoaurate (III) forms a crystalline hydrate of the composition Na [Au (CN) ₄ ] • 2H ₂ O — colorless crystals.

It is soluble in water.

Application

Galvanic gilding.
Porcelain and glass staining.

Literature

Ripan R., Chetyanu I. Inorganic chemistry. Chemistry of metals. - M .: Mir, 1972. - T. 2. - 871 p.