POTASSIUM SULFITE

Chemical properties

White crystals or powder. Soluble in water; sparingly soluble in alcohol; decomposes on heating and slowly oxidizes in air.

Chemical properties

Potassium sulfite, K2SO3·2H2O; potassium hydrogen sulfite, KHSO3; white solids, similar in properties and formation to the corresponding sodium sulfites.

The Uses of POTASSIUM SULFITE

Potassium Sulfite is used as a fabric treatment chemical.

The Uses of POTASSIUM SULFITE

Photographic developer, medicine (cathartic), food and wine preservative.

What are the applications of Application

Potassium sulfite is a chemical used for the transfer of an allyl group to thiols

Definition

potassium sulphite: A white crystallinesolid, K₂SO₃, soluble in waterand very sparingly soluble inethanol; r.d. 1.51; decomposes onheating. It is a reducing agent and isused as such in photography and inthe food and brewing industries,where it prevents oxidation.

Safety Profile

When heated to decomposition it emits toxic fumes of SOx and K2O. See also SULFUROUS ACID and SULFITES.