Sulfurous acid, calcium salt (2:1) → Sulfur Dioxide

HRID 1248919Notes

Reaction equation

HRID 1248919 reaction equation
[S:1]([O-])([O-:3])=[O:2].[Ca+2:5].[S:6](=[O:9])([OH:8])[O-:7].[Ca+2].S(=O)(O)[O-:12]>>[S:1](=[O:3])=[O:2].[S:6]([O-:12])([O-:8])(=[O:7])=[O:9].[Ca+2:5]

Participants

4

Reactant 2

HCID 26268Sulfurous acid, calcium salt (2:1)HCID 10154041Calcium sulfite

Product 2

HCID 1119Sulfur DioxideHCID 24497Calcium Sulfate

Procedure

An oxidation zone can be provided in the sump to convert calcium sulfite and calcium bisulfite, formed by the absorption of sulfur dioxide, into calcium sulfate so that the solids which tend to come out of solution in the sump to form the sludge, predominantly consist of calcium sulfate.

Workup

  1. customAn oxidation zone can be provided in the sump

Sources & evidence

ORD record
ord-a14f2ed91f3f495dba57302a5bc5f250
Source dataset
uspto-grants-1986_12
Patent number
US04627970

Reaction notes

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