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Properties of substance:

nickel(II) iodide

Group of substances:

inorganic

Physical appearance:

black hexagonal crystals

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

I2Ni

Structural formula as text:

NiI2

Molar/atomic mass: 312.502

Melting point (°C):

797

Solubility (g/100 g of solvent):

ethanol: soluble [Ref.]
water: 124.2 (0°C) [Ref.]
water: 188.2 (100°C) [Ref.]

Hygroscopic:

yes

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

-82.4 (s)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1345
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 172-173 [Russian]
  3. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 356 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru