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Properties of substance:

nickel(II) sulfide

Group of substances:

inorganic

Physical appearance:

black trigonal crystals

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

NiS

Structural formula as text:

NiS

Molar/atomic mass: 90.76

Melting point (°C):

797

Solubility (g/100 g of solvent):

water: insoluble [Ref.]

Density:

5.5 (20°C, g/cm3)

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

-79 (s)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

-76.9 (s)

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

52.97 (s)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

47.11 (s)

References:

  1. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 87 [Russian]
  2. Химическая энциклопедия. - Т. 3. - М.: Советская энциклопедия, 1992. - pp. 247 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru