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Properties of substance:

calcium peroxide

Group of substances:

inorganic

Physical appearance:

white tetragonal crystals

Empirical formula (Hill's system for organic substances):

CaO2

Structural formula as text:

CaO2

Molar/atomic mass: 78.08

Decomposition temperature (°C):

375

Solubility (g/100 g of solvent):

acetone: sparingly soluble [Ref.]
water: sparingly soluble [Ref.]

Density:

2.92 (25°C, g/cm3)

    Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

    -651.7 (s)

    Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

    -598 (s)

    Standard molar entropy S0 (298.15 K, J/(mol·K)):

    43.1 (s)

    References:

    1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 4-55
    2. Вольнов И.И. Перекисные соединения щелочноземельных металлов. - М.: Наука, 1983. - pp. 60, 69-75 [Russian]
    3. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 138-139 [Russian]
    4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 72 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru