Manganese Sulfate → dimanganese tris(sulphate)

HRID 1074865Notes

Reaction equation

HRID 1074865 reaction equation
[S:1]([O-:5])([O-:4])(=[O:3])=[O:2].[Mn+2:6].C1C2=C3C(C(C4C2=CC=CC=4)=O)=CC=C(C2C4C5C(=CC=2)C(=O)C2C(=CC=CC=2)C=5C=CC=4)C3=CC=1>S(=O)(=O)(O)O>[S:1]([O-:5])([O-:4])(=[O:3])=[O:2].[Mn+3:6].[S:1]([O-:5])([O-:4])(=[O:3])=[O:2].[S:1]([O-:5])([O-:4])(=[O:3])=[O:2].[Mn+3:6]

Participants

4

Reactant 2

HCID 24580Manganese SulfateHCID 61043[4,4'-Bi-7H-benz[de]anthracene]-7,7'-dione

Product 1

HCID 9930723dimanganese tris(sulphate)

Reagents, catalysts & solvents 1

HCID 1118Sulfuric AcidSolvent

Procedure

A process according to claim 1, wherein manganese(II) sulfate is oxidised anodically in 80 to 90% sulfuric acid, in the presence of 4,4'-bibenzanthrone, to give manganese(III) sulfate, which acts in situ as an oxidising agent and converts 4,4'-bibenzanthrone into dioxoviolanthrone.

Sources & evidence

ORD record
ord-a2914d033ac44cd9921b075135afb9de
Source dataset
uspto-grants-1983_07
Patent number
US04394227

Reaction notes

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