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Properties of substance:

europium(III) chloride

Group of substances:

inorganic

Physical appearance:

yellow hexagonal crystals

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

Cl3Eu

Structural formula as text:

EuCl3

Molar/atomic mass: 258.32

Melting point (°C):

624

Decomposition temperature (°C):

624

Solubility (g/100 g of solvent):

1,2-diethoxyethane: 0.25 (25°C) [Ref.]
1,3-dioxolane: 3.6 (25°C) [Ref.]
1,4-dioxane: 0.07 (25°C) [Ref.]
1-methoxyheptane: 0.5 (room temperature) [Ref.]
1-methoxypentane: 0.4 (room temperature) [Ref.]
allylamine: 6.4 (25°C) [Ref.]
ethylene glycol monomethyl ether: 4.6 (25°C) [Ref.]
isopropylamine: 13.1 (25°C) [Ref.]
n-butylamine: 34.2 (25°C) [Ref.]
propanol: 50.4 (25°C) [Ref.]
tributyl phosphate: 54.3 (25°C) [Ref.]

Reactions:

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

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

-939 (s)

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

127 (s)

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