Potassium dicyanoargentate is an inorganic compound with the formula KAg(CN)<sub>2</sub>. A white solid, it is the K<sup>+</sup> salt of the linear coordination complex [Ag(CN)<sub>2</sub>]<sup>âÂÂ</sup>. It forms upon treatment of virtually any silver salt with two equivalents of potassium cyanide.
KAg(CN)<sub>2</sub> 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.