Hydroxylamine Dithionate, (NH₂OH)₂.H₂S₂O₆

Hydroxylamine Dithionate, (NH₂OH)₂.H₂S₂O₆, is obtained by the action of hydroxylamine sulphate on barium dithionate. At 120° C. it is converted into hydroxylamine sulphate and sulphur dioxide. It is isomeric with ammonium perdisulphate. Hydroxylamine amidosulphonate, NH₂OH.NH₂.SO₃H, is isomeric with ammonium oxyamidosulphonate, NH(OH)SO₃NH₄, and with hydrazine sulphate, N₂H₄.H₂SO₄.