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Properties of substance:

radon

Group of substances:

inorganic

Physical appearance:

colorless gas

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

Rn

Structural formula as text:

Rn

CAS No: 14859-67-7

Molar/atomic mass: 222

Melting point (°C):

-71

Boiling point (°C):

-61.9

Solubility (g/100 g of solvent):

acetone: 7.51 (20°C) [Ref.]
benzene: 14.2 (18°C) [Ref.]
ethanol: 7.43 (20°C) [Ref.]
hexane: 24.5 (18°C) [Ref.]
water: 0.496 (0°C) [Ref.]
water: 0.126 (50°C) [Ref.]

Numerical data:

Year of discovery: 1900

Density:

4.4 (-62°C, g/cm3)
0.00973 (20°C, g/cm3)

    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)):

    167.7 (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):

    2.89

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

    16.8

    Critical temperature (°C):

    104.35

    Critical pressure (MPa):

    6.326

    References:

    1. Advances in Inorganic Chemistry. - Vol. 46. - Academic Press, 1999. - pp. 91-93
    2. Encyclopedia of inorganic chemistry. - editor R. Bruce King, 2 Ed., 10 volume set. - 2005
    3. Inorganic Chemistry. - 1984. - Vol. 23, No. 22. - pp. 3670-3671
    4. Бекман И.Н. Радиохимия. Том II: Радиоактивные элементы. - М.: Издатель Мархитин П.Ю., 2014. - pp. 84-90 [Russian]
    5. Гурвич Я.А. Справочник молодого аппаратчика-химика. - М.: Химия, 1991. - pp. 49, 51 [Russian]
    6. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 42 [Russian]
    7. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 91 [Russian]
    8. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 91 [Russian]
    9. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 587-590 [Russian]
    10. Аврорин В.В., Красикова Р.Н., Нефедов В.Д., Торопова М.А. Современное состояние химии радона / Успехи химии. - 1982. - Т.51, №1. - pp. 23-39 [Russian]
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru