Barium Sulfate → Sulfate Ion

HRID 1373670Notes

Reaction equation

HRID 1373670 reaction equation
[S:1]([S:5]([O-:8])(=[O:7])=[O:6])([O-:4])(=[O:3])=[O:2].[Ba+2].[O-:10][S:11]([O-:14])(=[O:13])=[O:12].[Cu+2:15].[O-]S([O-])(=O)=O.[Ba+2]>>[S:1]([S:5]([O-:8])(=[O:7])=[O:6])([O-:4])(=[O:3])=[O:2].[Cu+2:15].[S:11]([O-:14])([O-:13])(=[O:12])=[O:10]

Participants

5

Reactant 3

HCID 24414Barium SulfateHCID 24462Copper SulfateHCID 21998054Barium dithionate

Product 2

HCID 1117Sulfate IonYield 0.8%HCID 21989297HCID 21989297, compound

Procedure

A 2 liter flask was charged with an aqueous solution of barium dithionate (all of the solution from 1b) and an equimolar amount of solid CuSO4 (a very concentrated aqueous solution can be used, addition with vigorous stirring). Vigorous stirring was maintained for about 3 hours following which time the white suspension of BaSO4 was filtered. The resulting deep blue solution of copper dithionate was evaporated in-vacuo to yield solid copper dithionate as a blue crystalline material (approximately 55% yield based on MnO2 with less than 0.8% sulfate impurity by IC analysis).

Workup

  1. additionaddition
  2. stirringVigorous stirring
  3. temperaturewas maintained for about 3 hours
  4. filtrationwas filtered
  5. customThe resulting deep blue solution of copper dithionate was evaporated in-vacuo

Sources & evidence

ORD record
ord-839bf3cdbad447c59ffe0baecfe332db
Source dataset
uspto-grants-2007_01
Patent number
US07163915B2

Reaction notes

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