Periodic table of elements

Nickel(II) sulfide [NiS]

SOLUBILITY:
water [H2O]: ?.?.

PROPERTIES:
black trigonal crystals, gamma-form
M (molar mass): 90,760 g/mol
MP (melting point): 797 °C
D (density): 5,5 (20, ?/??3, ?.)
ΔH°298 (Standard molar enthalpy of reaction at 298 К): -79 (?) kJ/mol
ΔG°298 (standard molar Gibbs energy of reaction at 298 К): -76,9 (?) kJ/mol
298 (standard molar entropy at 298 К): 52,97 (?) J/(mol•К)
p (standard molar heat capacity): 47,11 (?) J/(mol•К)

LITERARY REFERENCES:
• ?????????? ????????????. - ?.3. - ?.: ????????? ????????????, 1992. – P. 247
• ????????? ?.?., ????? ?.?. ??????? ?????????? ??????????. - ?.: ?????, 1977. – P. 87

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