... :99% Ammoniutn sulfocyanateALIAS: Ammonium Rhodanide, Ammonium Sulfocyanate, Ammonium Sulfocyanite, ammonium isothiocyanate, Thiocyanic Acid, Ammonium Salt Properties: NH4SCN,a colorless crystalline or column ... decomposition at 170 may produce highly toxic fumes of hydrogen cyanide, hydrogen sulfide and toxic oxides of nitrogen, sulfur, and ... metal %,0.0010.001PH4.56.04.56.0 Ammonium sulfocyanate