| Identification | More | [Name]
POTASSIUM SULFITE | [CAS]
10117-38-1 | [Synonyms]
POTASSIUM SULFITE
POTASSIUM SULPHITE
dipotassiumsulfite
potassiumsulfite(k2so3)
Potassiumsulfite,anhydrous
Sulfurousacid,dipotassiumsalt
Potassium sulfite solution
POTASSIUM SULFITE SOLUTION, ~43% IN WATE R
PotassiumSulphiteAnhydrous
POTASSIUMSULFITE,45%AQUEOUSSOLUTION
POTASSIUMSULFITE,POWDER
Kaliumsulfit | [EINECS(EC#)]
233-321-1 | [Molecular Formula]
K2O3S | [MDL Number]
MFCD00011387 | [Molecular Weight]
158.26 | [MOL File]
10117-38-1.mol |
| Chemical Properties | Back Directory | [Appearance]
White crystals or powder. Soluble in
water; sparingly soluble in alcohol; decomposes on
heating and slowly oxidizes in air.
| [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 | [Uses]
Photographic developer, medicine (cathartic),
food and wine preservative.
| [CAS DataBase Reference]
10117-38-1(CAS DataBase Reference) | [EPA Substance Registry System]
Potassium sulfite (10117-38-1) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R31:Contact with acids liberates toxic gas. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
1
| [F ]
9 | [HS Code ]
2832200000 | [Safety Profile]
When heated to
decomposition it emits toxic fumes of SOx
and K2O. See also SULFUROUS ACID and
SULFITES. | [Hazardous Substances Data]
10117-38-1(Hazardous Substances Data) |
| Hazard Information | Back Directory | [Chemical Properties]
Potassium sulfite, K2SO3·2H2O; potassium hydrogen sulfite, KHSO3; white solids, similar in properties and formation to the corresponding sodium sulfites. | [Chemical Properties]
White crystals or powder. Soluble in
water; sparingly soluble in alcohol; decomposes on
heating and slowly oxidizes in air.
| [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. |
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