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Properties of substance:

iron(II) bromide

Group of substances:

inorganic

Physical appearance:

yellow trigonal crystals

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

Br2Fe

Structural formula as text:

FeBr2

Molar/atomic mass: 215.66

Melting point (°C):

688

Boiling point (°C):

968

Solubility (g/100 g of solvent):

benzene: soluble [Ref.]
diethyl ether: soluble [Ref.]
ethanol: soluble [Ref.]
propylene carbonate: soluble (25°C) [Ref.]
pyridine: 0.49 (25°C) [Ref.]
water: 108 (10°C) [Ref.]
water: 116 (20°C) [Ref.]
water: 124 (30°C) [Ref.]
water: 141 (49°C) [Ref.]
water: 160 (75°C) [Ref.]
water: 172.5 (83°C) [Ref.]
water: 184 (100°C) [Ref.]

Density:

4.636 (25°C, g/cm3)

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

-251.4 (s)

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

-239.6 (s)

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

140 (s)

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

67.4 (s)

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

54

Enthalpy (heat) of vaporization ΔvapH (kJ/mol):

125

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

-44 (g)

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

321 (g)

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

59.4 (g)

Neel temperature (K):

11

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 521
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 62 [Russian]
  3. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 350 [Russian]
  4. Справочник по растворимости. - Т.1, Кн.2. - М.-Л.: ИАН СССР, 1962. - pp. 1002 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru