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Properties of substance:

europium(II) chloride

Group of substances:

inorganic

Physical appearance:

white rhombic crystals

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

Cl2Eu

Structural formula as text:

EuCl2

Molar/atomic mass: 222.87

Melting point (°C):

731

Boiling point (°C):

2060

Numerical data:

Magnetic susceptibility (mm3/kg): 119

Reactions of synthesis:

  1. Yeild 100%. [Ref.1aster]
    2EuCl3 + H2 → 2EuCl2 + 2HCl

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

-812 (s)

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

170 (s)

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

76 (s)

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

23

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

246

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

-456 (g)

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

323 (g)

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

55.6 (g)

References:

  1. Гринвуд Н., Эрншо А. Химия элементов. - Т.2. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 559 [Russian]
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 114-115 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru