Ammonium sulfite monohydrate ((NH4)2SO3•H2O)-Crystalline

Characteristic

Ammonium sulfite is the ammonium salt of sulfurous acid with the chemical formula (NH₄)₂SO₃.

Chemical formula:(NH₄)₂SO₃

Molar mass:116.14 g/mol

Appearance: colourless hygroscopic Crystals

Melting point: 65 °C (149 °F; 338 K) decomposes

Solubility in water:35 g/100 mL; 32.4g/100mL at 0 degrees Celsius; 60.4g/100mL at 100 degrees Celsius

Solubility: Insoluble in acetone and alcohol

Refractive index (nD):1.515.

Application

Ammonium sulfite monohydrate is used in caramel coloring in the food industry. It is also used in cosmetics as a hair straightening agent and a hair waving agent. It acts as a reducing agent in photography. Further, it is used in the production of bricks in order to use in blast furnace linings. In addition to this, it used in gas scrubbers.