Hydrogen Peroxide → Copper

HRID 2194320Notes

Reaction equation

HRID 2194320 reaction equation
[Cu:1].O.OO.O=O.[CH3:7][S:8]([OH:11])(=[O:10])=[O:9]>>[CH3:7][S:8]([O-:11])(=[O:10])=[O:9].[Cu+2:1].[CH3:7][S:8]([O-:11])(=[O:10])=[O:9].[Cu:1]

Participants

7

Reactant 5

HCID 784Hydrogen Peroxide3×HCID 962WaterHCID 977OxygenHCID 6395Methanesulfonic Acid2×HCID 23978Copper3×

Product 2

HCID 23978CopperHCID 11196097Methanesulfonic acid, copper(2+) salt (2:1)

Conditions

Temperature
80 °C

Procedure

100 g copper wire scrap was introduced into an aqueous solution that contained 300 g methanesulfonic acid; this was brought to approximately 0.7 L by the addition of ion-exchanged water; and, while heating to 80° C., 30% aqueous hydrogen peroxide was intermittently added in 10 mL portions while monitoring the status of the reaction. Once a certain amount had been added, decomposition of the hydrogen peroxide began and oxygen gas was generated and this caused oxidation of the copper and its gradual dissolution in the methanesulfonic acid. Aqueous hydrogen peroxide was further added when the reaction had calmed. After several hours the copper wire was finally completely dissolved and an aqueous copper methanesulfonate solution with a copper concentration of 100 g/L was produced. The pH of the obtained aqueous copper methanesulfonate solution was 2.5.

Workup

  1. customthe status of the reaction
  2. additionOnce a certain amount had been added

Sources & evidence

ORD record
ord-8b4634aa143747628a10a77b0303857b
Source dataset
uspto-grants-2012_12
Patent number
US08333834B2

Reaction notes

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