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Appearance:powder
Throughput:100|Kilogram|Month
pd_productuse:intermediate
Delivery Time:in stock
Purity:90% purity
Merck 13,7761
CAS DataBase Reference 10117-38-1(CAS DataBase Reference)
EPA Substance Registry System Potassium sulfite (10117-38-1)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38-31
Safety Statements 26-36
WGK Germany 1
F 9
Hazardous Substances Data 10117-38-1(Hazardous Substances Data)
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 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.
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