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Properties of substance:

magnesium oxide

Group of substances:

inorganic

Physical appearance:

colorless cubic crystals

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

MgO

Structural formula as text:

MgO

Molar/atomic mass: 40.3

Melting point (°C):

2800

Boiling point (°C):

3600

Solubility (g/100 g of solvent):

ethanol: insoluble [Ref.]
ethyl acetate: insoluble [Ref.]
water: 0.00062 (0°C) [Ref.]
water: 0.0086 (30°C) [Ref.]

Density:

3.58 (20°C, g/cm3)

Standard molar enthalpy (heat) of formation ΔfH (298 K, kJ/mol)

-601.241 (s) [Ref.]

Standard molar Gibbs energy of formation ΔfG (298 K, kJ/mol)

-568.943 (s) [Ref.]

Standard molar entropy S (298 K, J/(mol·K))

26.924 (s) [Ref.]

Molar heat capacity at constant pressure Cp (298 K, J/(mol·K))

37.11 (s) [Ref.]

Enthalpy (heat) of fusion ΔfusH (kJ/mol)

77 (s) [Ref.]

References:

  1. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 78 [Russian]
  2. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 114-115 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru