Potassium argentocyanide
# Potassium argentocyanide

Potassium argentocyanide is an inorganic compound with the formula $KAg(CN)_2.$ A white solid, it is the $K^+$ salt of the linear coordination complex $[Ag(CN)_2]^-.$ It forms upon treatment of virtually any silver salt with two equivalents of potassium cyanide.

## Uses and reactions

$KAg(CN)_2$ is significant adventitious product of gold mining using cyanide as an extractant.

It can be used in silver plating, as a bactericide, and in the manufacture of antiseptics.

It forms a variety of coordination polymers, a property that exploits the bridging tendency of the cyanide ligand.

