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Properties of substance:

sodium hydride

Group of substances:

inorganic

Physical appearance:

colorless cubic crystals

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

HNa

Structural formula as text:

NaH

Molar/atomic mass: 23.998

Decomposition temperature (°C):

300

Solubility (g/100 g of solvent):

ammonia liquid : insoluble [Ref.]
benzene: insoluble [Ref.]
carbon disulphide: insoluble [Ref.]
carbon tetrachloride: insoluble [Ref.]
diethyl ether: insoluble [Ref.]
ethanol: reaction [Ref.]
melted sodium hydroxide: soluble [Ref.]
sodium fused: 5 (500°C) [Ref.]
water: reaction [Ref.]

Density:

1.38 (20°C, g/cm3)

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

    -56.4 (s)

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

    -38 (s)

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

    40 (s)

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

    36.4 (s)

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

    26

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

    141 (g)

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

    188.27 (g)

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

    30.3 (g)

    References:

    1. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 70, 88 [Russian]
    2. Жигач А.Ф., Стасиневич Д.С. Химия гидридов. - Л.: Химия, 1969. - pp. 57-65 [Russian]
    3. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 84 [Russian]
    4. Ситтиг М. Натрий, его производство, свойства и применение. - М.: ГИЛОАНТ, 1961. - pp. 197-205 [Russian]
    5. Химическая технология неорганических веществ. - Кн.1, под ред. Ахметова Т.Г. - М.: Высшая школа, 2002. - pp. 53-56 [Russian]
    6. Химический энциклопедический словарь. - Под ред. Кнунянц И.Л. - М.: Советская энциклопедия, 1983. - pp. 362 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru