Copper peroxide

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Copper(II) peroxide
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/Cu.O2/c;1-2/q+2;-2
    Key: CNBDXDKFMUKCIQ-UHFFFAOYSA-N
  • [Cu+2].[O-]-[O-]
Properties
CuO2
Molar mass 95.945 g/mol
Appearance dark olive-green
Related compounds
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Copper peroxide is an inorganic compound with the formula CuO2. It is an oxide of copper(II), with the two oxygen atoms as a peroxide unit. It appears as a dark olive green solid or similarly colored suspension and is unstable, decomposing to oxygen and other copper oxides.

Preparation[]

Copper peroxide is prepared by the reaction of cold solutions of hydrogen peroxide and Schweizer's reagent, the latter prepared from copper hydroxide and dilute ammonia solution.[1] The Schweizer's reagent used must not contain excess ammonia.[1] Copper peroxide may also be produced by the reaction of an ice-cold solution of hydrogen peroxide with a suspension of copper hydroxide.[2] It may also form from the very slow reaction of finely divided cupric oxide with cold hydrogen peroxide.[3]

Properties[]

When wet, copper peroxide decomposes[4] at temperatures above 6 °C; it "is far more stable when dry".[3]

References[]

  1. ^ a b The collected works of Sir Humphry Davy: Discourses delivered before the Royal society. Elements of agricultural chemistry, pt. I. The Chemical Society (Great Britain). 1894. p. 32.
  2. ^ Friend, John Newton (1924). A Text-book of Inorganic Chemistry. C. Griffin, Ltd. p. 276.
  3. ^ a b Journal of the Chemical Society of London, Volume 48, Part 1. London. 1885. p. 124.
  4. ^ Electrical World, Volume 39. 1902. p. 997.
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