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Properties of substance:

iron(II) chloride tetrahydrate

Group of substances:

inorganic

Physical appearance:

monoclinic crystals

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

H8Cl2FeO4

Structural formula as text:

FeCl2 * 4H2O

Molar/atomic mass: 198.81

Decomposition temperature (°C):

76.5

Solubility (g/100 g of solvent):

ethanol: soluble [Ref.]
water: 154 (20°C) [Ref.]
water: 316 (100°C) [Ref.]

Hygroscopic:

yes

Density:

1.96 (20°C, g/cm3)

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

-1552 (s)

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

245.6 (s)

Neel temperature (K):

1

References:

  1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 118-119 [Russian]
  2. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 62-63 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru