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Potassium sulfite

Potassium sulfite
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IUPAC name
Potassium sulfite
Other names
E225
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10117-38-1 7pxY
ChemSpider 23332 7pxN
Jmol-3D images Image
PubChem Template:Chembox PubChem/format
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K2S</sub>O3
Molar mass 158.26 g/mol
Appearance white solid
soluble
Acidity (pKa) 8
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EU Index Not listed
Flash point Non-flammable
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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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Infobox references

Potassium sulfite (K2SO3) is a chemical compound which is the salt of potassium cation and sulfite anion. As a food additive it is used as a preservative under the E number E225 (INS number 225). It is approved for use in Australia and New Zealand[1] and is not approved in the EU.[2]

References

  1. ^ Australia New Zealand Food Standards Code"Standard 1.2.4 - Labelling of ingredients". Retrieved 2011-10-27. 
  2. ^ UK Food Standards Agency: "Current EU approved additives and their E Numbers". Retrieved 2011-10-27.