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Properties of substance:

nickel(II) oxide

Group of substances:

inorganic

Physical appearance:

grayish-green cubic crystals

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

NiO

Structural formula as text:

NiO

Molar/atomic mass: 74.7

Melting point (°C):

1955

Solubility (g/100 g of solvent):

boron oxide molten: 0.5 (900°C) [Ref.]
water: insoluble [Ref.]

Density:

7.45 (20°C, g/cm3)

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

    -239.7 (s)

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

    -211.6 (s)

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

    37.99 (s)

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

    44.31 (s)

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

    314 (g)

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

    241 (g)

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

    33.9 (g)

    References:

    1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 4-78
    2. Перельман Ф.М., Зворыкин А.Я. Кобальт и никель. - М.: Наука, 1975. - pp. 56 [Russian]
    3. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 87 [Russian]
    4. Рипан Р., Четяну И. Неорганическая химия. - Т.2. - М.: Мир, 1972. - pp. 595 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru