7628. Potassium Dicyanoaurate(I)

Nomenclature

CAS number: 13967-50-5
Gold potassium cyanide; potassium aurocyanide.
C2AuKN2; mol wt 288.10.
C 8.34%, Au 68.37%, K 13.57%, N 9.72%.
KAu(CN)2.

Description and references

Prepd by electrolysis of Au in KCN: Glassford, Napier, Philos. Mag. 25, 61 (1844).

Derivative

Dihydrate.

Properties

Cryst powder. One gram dissolves in 7 ml water, 0.5 ml boiling water; slightly sol in alcohol. Practically insol in ether.

Use

For electroplating.