Hydroxylammonium sulfate (NH3OH)2SO4, is the sulfuric acid salt of hydroxylamine. It is primarily used as an easily handled form of hydroxylamine, which is explosive when pure.
1. Hydroxylammonium sulfate is used in the production of anti-skinning agents, pharmaceuticals, rubber, textiles, plastics and detergents
2. It is a radical scavenger that terminates radical polymerization reactions and serves as an antioxidant in natural rubber; it is also a starting material for some insecticides, herbicides and growth regulators
3. It is used in photography as a stabilizer for colour developers and as an additive in photographic emulsions in colour film