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Properties of substance:

magnesium carbonate


Physical appearance:

white crystals

Empirical formula (Hill's system):

CMgO3

Structural formula:

MgCO3

Molar/atomic mass: 84.31

Destruction point (°C):

500

Solubility (g/100 g of solvent):

water: 0.0139 (25°C)
water: 0.0063 (100°C)
acetic acid: insoluble

Density:

3 (20°C, g/cm3)

    Dissociation:

    pПР (0) = 4.7 (20°C, water)

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

    -1113 (s)

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

    -1029.3 (s)

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

    65.7 (s)

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

    75.6 (s)

      References:

      1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 951-956
      2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 78
      3. Справочник химика. - Т.2. - Л.-М.: Химия, 1964. - pp. 116-117
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        © Collected Kiper Ruslan Anatolievich, burewestnik@mail.ru