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Properties of substance:

manganese(II,IV) oxide

Group of substances:

inorganic

Physical appearance:

tetragonal crystals

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

Mn3O4

Structural formula as text:

Mn3O4

Molar/atomic mass: 228.81

Melting point (°C):

1560

CAS №: 1317-35-7

Solubility (g/100 g of solvent):

water: insoluble [Ref.]

Density:

4.72 (20°C, g/cm3)

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

-1387.6 (s)

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

-1282.9 (s)

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

154.8 (s)

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

139.3 (s)

Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

127.6

References:

  1. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 305 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 79 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru