(Redirected from Pyrosulfite)
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| Names | |
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| IUPAC name
disulfite[1]
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| Systematic IUPAC name
pentaoxido-1κ3O,2κ2O-disulfate(S—S)(2−)[1] | |
| Other names
metabisulfite ion
pyrosulfite | |
| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
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| S 2O2− 5 | |
| Conjugate acid | Disulfurous acid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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A disulfite, commonly known as metabisulfite or pyrosulfite, is a chemical compound containing the ion S
2O2−
5. It is a colorless dianion that is primarily marketed in the form of sodium metabisulfite or potassium metabisulfite. When dissolved in water, these salts release the hydrogensulfite HSO−
3 anion. These salts act equivalently to sodium hydrogensulfite or potassium hydrogensulfite.[2]
https://en.wikipedia.org/wiki/Disulfite
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