|  | |  |  | POTASSIUM SULFITE Basic information | 
|  |  | POTASSIUM SULFITE Chemical Properties | 
|  |  | POTASSIUM SULFITE Usage And Synthesis | 
 | 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. |  | Uses | Potassium Sulfite is used as a fabric treatment chemical. |  | Uses | Photographic developer, medicine (cathartic),
food and wine preservative. |  | 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. | 
|  |  | POTASSIUM SULFITE Preparation Products And Raw materials | 
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