Sulfuric Acid → Ozone

HRID 67050

Reaction equation

HRID 67050 reaction equation
[OH2:1].[OH2:2].[O-:3][S:4]([O-:7])(=[O:6])=[O:5].[Ca+2:8].S(=O)(=O)(O)[OH:10]>>[O:1]=[O+:2][O-:3].[OH2:10].[OH2:3].[O-:6][S:4]([O-:7])(=[O:5])=[O:3].[Ca+2:8]

Participants

4

Reactant 2

HCID 1118Sulfuric AcidHCID 24928Calcium Sulfate Dihydrate

Product 2

HCID 24823OzoneHCID 24928Calcium Sulfate Dihydrate

Procedure

The same phosphogypsum suspension having a whiteness grade equal to 65 was acidified up to pH equal to 3 by using a sulfuric acid solution. After treatment with 500 parts per millions of ozone a phosphogypsum having a whiteness grade equal to 77 was obtained.

Sources & evidence

ORD record
ord-ed87d956b6124abc84e9ecfa1f7e8ce1
Source dataset
uspto-grants-1982_08
Patent number
US04344925

Linked notes

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