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Properties of substance:

manganese(II) carbonate


Physical appearance:

hexagonal crystals

Empirical formula (Hill's system):

CMnO3

Structural formula:

MnCO3

Molar/atomic mass: 114.95

Destruction point (°C):

300

Solubility (g/100 g of solvent):

water: 0.00011 (18°C)
ethanol: insoluble

Density:

3.125 (20°C, g/cm3)

    Dissociation:

    pПР (0) = 11 (20°C, acetone)

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

    -881.7 (s)

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

    -811.4 (s)

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

    109.5 (s)

    Molar heat capacity at constant pressure Cp (298.15 K, J/mol·K):

    94.8 (s)

    Neel temperature (K):

    32.5

    References:

    1. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 303
    2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 79
    3. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советсткая энциклопедия, 1983. - pp. 312
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru