Lithium Chromicyanide, Li₃[Cr(CN)₆]

Lithium Chromicyanide, Li₃[Cr(CN)₆].5H₂O, is obtained by passing hydrogen sulphide into an alcoholic solution containing equivalent quantities of lithium carbonate and silver chromicyanide; after expelling excess of hydrogen sulphide, adding a little water, and evaporating in vacuo, the salt crystallises in long needles.