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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
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      © Collected Kiper Ruslan Anatolievich