... at 170 may produce highly toxic fumes of hydrogen cyanide, hydrogen sulfide and toxic oxides of nitrogen, sulfur, and carbon. Usage:General: ... in fixing baths.Pesticide: Raw material for the production of a number of herbicides and fungicides.Photographic: Stabilizer, accelerator, etc.Metal ... This is our regular exporting product, we are one of the main supplier of Ammonium Sulfocyanate in China.