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Properties of substance:

magnesium carbonate

Group of substances:

inorganic

Physical appearance:

white trigonal crystals

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

CMgO3

Structural formula as text:

MgCO3

Molar/atomic mass: 84.31

Decomposition temperature (°C):

500

Solubility (g/100 g of solvent):

acetic acid: insoluble [Ref.]
acetone: insoluble [Ref.]
ammonia liquid : insoluble [Ref.]
ethyl acetate: insoluble [Ref.]
hydrazine: insoluble [Ref.]
methyl acetate: insoluble [Ref.]
methylal: insoluble [Ref.]
water: 0.0139 (25°C) [Ref.]
water: 0.0063 (100°C) [Ref.]

Density:

3 (20°C, g/cm3)

Dissociation:

pKsp (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 [Russian]
  3. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 116-117 [Russian]
  4. Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 627-628 [Russian]
  5. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 309 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru