Used as a reducing agent in analytical chemistry, particularly in the determination of nitrate and nitrite levels in water and soil samples. Plays a role in organic synthesis by converting carbonyl compounds into oximes and nitriles. Employed in the production of hydroxylamine-O-sulfonic acid, a reagent in biochemical and pharmaceutical applications. Also utilized in electroless nickel plating processes to stabilize the plating bath and improve deposit quality. Its reducing properties make it useful in removing residual oxidizing agents in industrial cleaning and decontamination procedures.