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Systems with concentrated hydrogen peroxide

Communication 22. Thermal analysis of copper peroxides

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Summary

  1. 1.

    The solid phases Cu(OH)2, CuO2 · H2O, · and CuO2 · H2O2 · H2O, found in a study of the ternary system, and also CuO2 that was synthesized were examined by thermal analysis and active oxygen liberation curves were plotted.

  2. 2.

    The sequence of the processes in the thermal decomposition of all the compounds given was studied.

  3. 3.

    Anhydrous CuO2 is most stable and decomposes at 110–120° to form CuO and O2.

  4. 4.

    The formation of CuO2 by dehydration of CuO2 · H2O2 · H2O was confirmed by thermal analysis data and Debye-Scherrer x-ray diffraction patterns.

  5. 5.

    The compounds CuO2 · H2O and CuO2 · H2O2 · H2O should be regarded as hydroperoxides of the type Cu(OOH) (OH) and Cu(OOH) (OH) · H2O2.

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Literature cited

  1. 1.

    S. Z. Makarov and T. I. Arnold, Izvest. Akad. Nauk' SSSR, Otdel. Khim. Nauk 1913 (1960).

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    L. I. Thenard, Ann. Chim. Phys.9, 51 (1818).

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    D. I. Mendeleev, Bases of Chemistry [in Russian] (1895), Vol. 11, p. 715.

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    G. Kruss, Ber.17, 2594 (1884).

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    L. Moser, Z. anorgan. Chem.54, 127 (1907).

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    C. Weltzien, J. prakt. Chem.140, 207 (1866).

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    L. Swintkovsky, Liebigs Ann. Chem.141, 205 (1867).

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Makarov, S.Z., Arnold, T.I., Stasevich, N.N. et al. Systems with concentrated hydrogen peroxide. Russ Chem Bull 9, 1940–1944 (1960). https://doi.org/10.1007/BF00912042

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Keywords

  • Oxygen
  • Hydrogen
  • H2O2
  • Hydrogen Peroxide
  • Diffraction Pattern