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Properties of substance:

iron(II,III) oxide

Group of substances:

inorganic

Physical appearance:

black cubic crystals

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

Fe3O4

Structural formula as text:

Fe3O4

Molar/atomic mass: 231.54

Decomposition temperature (°C):

1540

Solubility (g/100 g of solvent):

diethyl ether: insoluble [Ref.]
ethanol: insoluble [Ref.]
water: insoluble [Ref.]

Density:

5.2 (20°C, g/cm3)

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

-1117.1 (s)

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

-1014.2 (s)

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

146.2 (s)

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

150.8 (s)

References:

  1. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 367-368 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 63 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru