Calcium bisulfite

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Calcium bisulfite
IUPAC name Calcium hydrogen sulfite
Other names Calcium bisulphite
E227
Identifiers
CAS number
PubChem 26268
SMILES OS(=O)[O-].OS(=O)[O-].[Ca+2]
Properties
Molecular formula CaH2O6S2
Molar mass 202.22 g/mol
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)

Infobox disclaimer and references

Calcium bisulfite (calcium bisulphite) is an inorganic compound which is the salt of calcium cation and bisulfite anion. As a food additive it is used as a preservative under the E number E227.

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