Periodic table of elements

Ferric(II) fluoride [FeF2]

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

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

LITERARY REFERENCES:
• ????????? ?.?., ????? ?.?. ??????? ?????????? ??????????. - ?.: ?????, 1977. – P. 64

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