Sulfuric Acid → Sodium Sulfate

HRID 275241

Reaction equation

[Cr:1]([O-:5])([O-:4])(=[O:3])=[O:2].[Na+:6].[Na+].[S:8](=[O:12])(=[O:11])([OH:10])[OH:9]>>[O-:2][Cr:1]([O:5][Cr:1]([O-:4])(=[O:3])=[O:2])(=[O:4])=[O:3].[Na+:6].[Na+:6].[S:8]([O-:12])([O-:11])(=[O:10])=[O:9].[Na+:6].[Na+:6]

Participants

Reactant 2

HCID 1118Sulfuric Acid

HCID 24488Sodium Chromate

Product 2

HCID 24436Sodium Sulfate

HCID 25408Sodium Dichromate

Procedure

In a process wherein sodium chromate is reacted with aqueous sulfuric acid to produce an aqueous solution of sodium bichromate and solid sodium sulfate contaminated with hexavalent chromium, and said solid sodium sulfate is separated from said solution, the improvement comprising

Sources & evidence

ORD record: ord-1bf5cd5325f74e46a17b07b67957c70f
Source dataset: uspto-grants-1995_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05393503

Linked notes

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