Thallous thiocyanate, TlCNS

Thallous thiocyanate, TlCNS, is precipitated as small, white, tetragonal crystals (a:b:c = 1:0.5593:0.5593) when aqueous solutions of thallous nitrate and potassium thiocyanate are mixed. One hundred grams of water dissolve 0.316, 0.392, and 0.732 grams of the salt at 19.94°, 25°, and 39.75° respectively.

The double salt, TlCNS.KCNS, crystallises from a solution of thallous and potassium thiocyanates. The compound, Tl₂Pt(CNS)₆.9NH₃, is also known.