It can be used to produce sewage decolorization agent, used as a fertilizer, cellulose nitrate stabilizers, rubber vulcanization accelerators, also used to make plastics, synthetic resins, synthetic varnish, cyanide compound, or a raw material for producing melanin. Used for verification of cobalt, nickel, copper and palladium, organic synthesis , nitrocellulose stabilizer, hardener, detergent, vulcanization accelerator, resin synthesis.