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Properties of substance:

iron(II) oxide

Group of substances:

inorganic

Physical appearance:

black cubic crystals

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

FeO

Structural formula as text:

FeO

Molar/atomic mass: 71.85

Melting point (°C):

1360

Solubility (g/100 g of solvent):

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

Density:

5.7 (20°C, g/cm3)

Surface tension (mN/m):

585 (1420°C)

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

-264.8 (s)

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

-244.3 (s)

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

60.75 (s)

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

49.92 (s)

Neel temperature (K):

198

References:

  1. Гринвуд Н., Эрншо А. Химия элементов. - Т.2. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 409 [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