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.