Hydroxylammonium sulfate

It is primarily used as an easily handled form of hydroxylamine, which is a volatile liquid.

[2] Hydroxylammonium sulfate is prepared industrially by protonation of hydroxylamine.

The latter is produced by the hydrogenation of nitric oxide using a platinum catalyst:[2] Another route to NH2OH is the Raschig process: aqueous ammonium nitrite is reduced by HSO−3 and SO2 at 0 °C to yield a hydroxylamido-N,N-disulfonate anion::[3] This ammonium hydroxylamine disulfonate anion is then hydrolyzed to give hydroxylammonium sulfate: Almost all hydroxylamine and its salts are used to make precursors to nylons via cyclohexanone oxime.

Hydroxylammonium sulfate is used in the production of anti-skinning agents, pharmaceuticals, rubber, textiles, plastics and detergents.

(NH3OH)2SO4 is a starting material for some insecticides, herbicides and growth regulators.

NFPA 704 four-colored diamond Health 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gas Flammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oil Instability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorus Special hazards (white): no code