POTASSIUM SULFITE
- CAS NO.：10117-38-1
- Empirical Formula: H3KO3S
- Molecular Weight: 122.18
- MDL number: MFCD00011387
- EINECS: 233-321-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:14
What is 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.
Properties of POTASSIUM SULFITE
| Density | 2.353[at 20℃] |
| solubility | slightly soluble in ethanol |
| color | colorless hexagonal, hexane crystals, crystalline |
| Odor | odorless |
| Water Solubility | 1060g/L at 25℃ |
| Merck | 13,7761 |
| CAS DataBase Reference | 10117-38-1(CAS DataBase Reference) |
| EPA Substance Registry System | Potassium sulfite (10117-38-1) |
Safety information for POTASSIUM SULFITE
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for POTASSIUM SULFITE
New Products
2-Ethoxyphenol Methyl 2-methoxy-5-sulfamoylbenzoate Ethyl 2-chloro-2-(2-(4-methoxyphenyl)hydrazono)acetate 3,6-Dichloropyridazine 3,6-Dichloro-4-Isopropylpyridazine 2-[(2-Ethoxyphenoxy)methyl]oxirane m-Tolualdehyde p-Anisaldehyde 2-Bromobenzaldehyde 4-Fluorobenzaldehyde 1-Propyl-4-piperidone 3-Amino-3-(3-fluorophenyl)propanoic acid 6-Methyl-2-pyridinemethanol 2-Pyridinecarboxaldehdye tert-Butyl ((1R,2S,5S)-2-amino-5-(dimethylcarbamoyl)cyclohexyl)carbamate 1-Indanone 2-Chloromethyl-6-methyl-pyridine 4-Morpholinoaniline Abiraterone Ethyl Ether 1-nitro-3,5-dimethyl adamantine (NMEM) Vardenafil Bis-sulphonamide(Dimer) 3-(2-aminoethyl) benzene sulfonamide Nabumetone Impurity 5 2,2-dibromo-1-cyclopropyl-2-(2-fluorophenyl)ethan-1-oneRelated products of tetrahydrofuran
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