Potassium sulfite
Chemical compound / From Wikipedia, the free encyclopedia
Potassium sulfite is the inorganic compound with the formula K2SO3. It is the salt of potassium cation and sulfite anion. It is a white solid that is highly soluble in water. Potassium sulfite is used for preserving food and beverages.[2]
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
Potassium sulfite | |
Other names
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Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.030.279 |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
K2SO3 | |
Molar mass | 158.26 g/mol |
Appearance | White solid |
Density | 2.49 g/cm3[1] |
Soluble | |
Acidity (pKa) | 8 |
−64.0·10−6 cm3/mol | |
Hazards | |
Flash point | Non-flammable |
Related compounds | |
Other anions |
Potassium sulfate Potassium selenite |
Other cations |
Sodium sulfite |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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