Sulfuric Acid → Peroxydisulfuric acid

HRID 1597129Notes

Reaction equation

HRID 1597129 reaction equation
[S:1]([O:5][O:6][S:7]([O-:10])(=[O:9])=[O:8])([O-:4])(=[O:3])=[O:2].[K+:11].[K+].[S:13](=[O:17])(=[O:16])([OH:15])[OH:14]>>[S:1]([O:5][O:6][S:7]([OH:10])(=[O:9])=[O:8])([OH:4])(=[O:3])=[O:2].[S:13]([O-:17])([O-:16])(=[O:15])=[O:14].[K+:11].[K+:11]

Participants

4

Reactant 2

HCID 1118Sulfuric AcidHCID 24412Potassium Persulfate

Product 2

HCID 24413Peroxydisulfuric acidHCID 24507Potassium Sulfate

Procedure

Referring to Equation (9), the potassium persulfate and the sulfuric acid react to form peroxydisulfuric acid and potassium sulfate. In Equation (10), the peroxydisulfuric acid oxidizes the manganese dioxide to form hydrogen permanganate and sulfuric acid. The oxidation of Mn2+ to Mn7+ results in the reformation of MnO4− which is visible by the color change in the bath from purple-brown to purple.

Sources & evidence

ORD record
ord-72312fd3aa3a4f479e4269309b8ecc3a
Source dataset
uspto-grants-2001_09
Patent number
US06294469B1

Reaction notes

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