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Properties of substance:

nickel

Group of substances:

inorganic

Physical appearance:

hexagonal metal

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

Ni

Structural formula as text:

Ni

Molar/atomic mass: 58.7

Melting point (°C):

1455

Boiling point (°C):

2900

Solubility (g/100 g of solvent):

lithium molten: 0.15 (700°C) [Ref.]
lithium molten: 0.5 (750°C) [Ref.]
lithium molten: 1.38 (850°C) [Ref.]
lithium molten: 3.3 (950°C) [Ref.]
mercury: 0.00059 (18°C) [Ref.]
potassium fused: 0.0006 (700°C) [Ref.]
sodium fused: 0.0003 (700°C) [Ref.]
water: insoluble [Ref.]

Numerical data:

Year of discovery: 1751
Hardness on the Mohs’ scale: 3.8

Density:

8.91 (20°C, g/cm3)

Reactions:

  1. [Ref.1]
    Ni + F2 → NiF2
  2. [Ref.1]
    2Ni + O2 → 2NiO
  3. [Ref.1]
    3Ni + 8HNO3 → 3Ni(NO3)2 + 2NO + 4H2O
  4. [Ref.1]
    Ni + 4CO → Ni(CO)4
  5. [Ref.1]
    Ni + Al → NiAl
  6. [Ref.1]
    Ni + Cl2 → NiCl2

Vapour pressure (Torr):

1 (1408°C)
10 (1600°C)
100 (1850°C)

Electrode potential:

Ni2+ + 2e- → Ni, E = -0.25 V (water, 25°C)

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

0 (s)

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

0 (s)

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

29.9 (s)

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

26.1 (s)

Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

17.5

Enthalpy (heat) of vaporization ΔvapH (kJ/mol):

369.9

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

429 (g)

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

182.1 (g)

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

23.3 (g)

LD50 (mg/kg):

780 (rats, oral)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1337
  2. Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 51 [Russian]
  3. Неорганические синтезы. - Сб. 1. - М.: ИИЛ, 1951. - pp. 10 [Russian]
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 87 [Russian]
  5. Реми Г. Курс неорганической химии. - Т.2. - М., 1966. - pp. 332-333 [Russian]
  6. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 637 [Russian]
  7. Химическая энциклопедия. - Т. 3. - М.: Советская энциклопедия, 1992. - pp. 240-242 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru