Periodic table of elements

Ferric(II) fluoride [FeF2]

SOLUBILITY:
water [H2O]: low soluble
diethyl ether [C2H5OC2H5]: insoluble
fluorine hydride [HF]: 0,005 (-22,5°), 0,005 (-4,5°), 0,006 (11,8°)
ethanol [C2H5OH]: insoluble

PROPERTIES:
white tetragonal crystals
M (molar mass): 93,840 g/mol
MP (melting point): 1100 °C
D (density): 4 (20°, g/cm3, s.)
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -345 (g) kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): -618,5 (s) kJ/mol
298 (standard molar entropy at 298 К): 273 (g) J/(mol•К)
p (standard molar heat capacity): 52,3 (g) J/(mol•К)

LITERARY REFERENCES:
• Rabinovich V.A., Havin Z.Ya. Kratkiy himicheskiy spravochnik. - L.: Himiya, 1977. – P. 64

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