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Properties of substance:

nepheline

Group of substances:

inorganic

Physical appearance:

colorless hexagonal crystals

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

AlNaO4Si

Structural formula as text:

NaAlSiO4

Molar/atomic mass: 142.054

Melting point (°C):

1526

Density:

2.62 (21°C, g/cm3)

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

    -2093 (s)

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

    124 (s)

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

    118.1 (s)

    References:

    1. Войткевич Г.В., Кокин А.В., Мирошников А.Е., Прохоров В.Г. Справочник по геохимии. - М.: Недра, 1990. - pp. 49 [Russian]
    2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 162-163 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru