Summary
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1.
A study of the interaction of aqueous solution of calcium hydroxide with hydrogen peroxide over a wide range of concentrations, carried out by the solubility method applied to the ternary system Ca(OH)2-H2O2-H2O at 0°,−10°, and −21°, has made it possible to determine the actual composition and limits of existence of the stable solid phases.
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2.
The calcium peroxy compounds whose existence is fully established by the study of the ternary system Ca(OH2-H2O2-H2O at 0°, −10°, and −21° are: CaO2·8H2O; CaO2·2H2O and CaO2·2H2O2.
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3.
Formation of calcium peroxide octahydrate occurs under restricted conditions at low hydrogen peroxide concentrations.
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4.
Calcium peroxide diperhydrate is formed over a wide range of hydrogen peroxide concentrations and is relatively stable only at low temperatures.
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Makarov, S.Z., Grigoryeva, N.K. Systems containing concentrated hydrogen peroxide Communication 4. Solubility isotherms of the ternary system Ca(OH)2-H2O2-H2O. Russ Chem Bull 3, 323–328 (1954). https://doi.org/10.1007/BF01167806
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DOI: https://doi.org/10.1007/BF01167806