Periodic table of elements

Ferric(II) sulfide [FeS]

SOLUBILITY:
water [H2O]: 0,000616 (18)
hydrazine [N2H4]: ????.9 (20)

PROPERTIES:
brown-black hexagonal crystals
M (molar mass): 87,910 g/mol
MP (melting point): 1193 °C
D (density): 4,7 (20, ?/??3, ?.)
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -100,4 (?) kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): -100,8 (?) kJ/mol
298 (standard molar entropy at 298 К): 60,29 (?) J/(mol•К)
p (standard molar heat capacity): 50,54 (?) J/(mol•К)
pSP (solubility product index): 17,3 (20, ????)

LITERARY REFERENCES:
• ?????????? ????????????. - ?.2. - ?.: ????????? ????????????, 1990. – P. 137
• Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1 - New York: D. Van Nostrand Company, 1940. – P. 538
• ???????? ?.?. ?????? ????? ?????. - ?.2. - ?.: ?????, 1973. – P. 363
• ????????? ?.?., ????? ?.?. ??????? ?????????? ??????????. - ?.: ?????, 1977. – P. 63

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