Potassium sulfite
| |
| Names | |
|---|---|
| IUPAC name
Potassium sulfite
| |
| Other names
E225
| |
| Identifiers | |
3D model (JSmol)
|
|
| ChemSpider | |
| ECHA InfoCard | 100.030.279 |
PubChem CID
|
|
| UNII | |
CompTox Dashboard (EPA)
|
|
| |
| |
| Properties | |
| K2SO3 | |
| Molar mass | 158.26 g/mol |
| Appearance | white solid |
| 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).
| |
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
- ^ Australia New Zealand Food Standards Code"Standard 1.2.4 - Labelling of ingredients". Retrieved 2011-10-27.
- ^ UK Food Standards Agency: "Current EU approved additives and their E Numbers". Retrieved 2011-10-27.
 | This inorganic compound–related article is a stub. You can help Wikipedia by expanding it. |