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Properties of substance:

neon

Physical appearance:

colorless gas

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

Ne

Structural formula as text:

Ne

Molar/atomic mass: 20.179

Melting point (°C):

-249

Boiling point (°C):

-246

Solubility (g/100 g of solvent):

acetone: 0.00387 (15°C) [Ref.]
acetone: 0.00432 (25°C) [Ref.]
benzene: 0.00229 (15°C) [Ref.]
benzene: 0.00259 (25°C) [Ref.]
water: 0.00111 (0°C) [Ref.]
water: 0.00104 (25°C) [Ref.]
water: 0.000882 (74°C) [Ref.]
methanol: 0.00372 (15°C) [Ref.]
methanol: 0.004 (25°C) [Ref.]
cyclohexane: 0.004 (20°C) [Ref.]
ethanol: 0.00343 (15°C) [Ref.]
ethanol: 0.00375 (25°C) [Ref.]

Numerical data:

Year of discovery: 1898
Ionization Potentials (Electronvolts): 21.565

Density:

0.00090035 (20°C, g/cm3)
1.205 (-246°C, g/cm3)

Vapour pressure (Torr):

1 (-257.3°C)
10 (-254.7°C)
100 (-251°C)

    Permittivity (dielectric constant):

    1.000127 (0°C)
    1.1907 (-247.04°C)

    Speed sound (m/s):

    433.4 (0°C, aggregative state - gas)
    461.3 (30.5°C, aggregative state - gas)

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

    0 (g)

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

    0 (g)

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

    146.22 (g)

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

    20.79 (g)

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

    0.33

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

    1.79

    Critical temperature (°C):

    -228.7

    Critical pressure (MPa):

    2.73

    Critical density (g/cm3):

    0.484

    References:

    1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1336
    2. Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 51
    3. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 46
    4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 24, 86
    5. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 576-578
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru