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Properties of substance:

xenon hexafluoride

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

F6Xe

Structural formula as text:

XeF6

Molar/atomic mass: 245.29

Melting point (°C):

49.48

Boiling point (°C):

75.65

Solubility (g/100 g of solvent):

bromine pentafluoride: 269.8 (25°C) [Ref.]
hydrogen fluoride : 77.5 (15.8°C) [Ref.]
hydrogen fluoride : 211 (20°C) [Ref.]
hydrogen fluoride : 148.7 (21.7°C) [Ref.]
hydrogen fluoride : 274.7 (28.5°C) [Ref.]
hydrogen fluoride : 477.1 (30.25°C) [Ref.]
water: reaction [Ref.]

Density:

3.41 (20°C, g/cm3)
3.23 (50.4°C, g/cm3)

Reactions of synthesis:

  1. [Ref.1]
    Xe + 3F2 → XeF6

Vapour pressure (Torr):

30 (25°C)

Permittivity (dielectric constant):

4.1 (55°C)

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

-277.2 (g)

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

387.242 (g)

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

131.168 (g)

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

5.74

ΔHsublimation (kJ/mol):

60.8

Standard molar enthalpy (heat) of formation ΔfH (298 K, kJ/mol)

-279.03 (g) [Ref.]
-338.15 (s) [Ref.]

Standard molar Gibbs energy of formation ΔfG (298 K, kJ/mol)

-160.92 (g) [Ref.]
-169.03 (s) [Ref.]

References:

  1. CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 4-98
  2. Malm, J. G., Selig, H., Jortner, J., & Rice, S. A. The Chemistry of Xenon / Chemical Reviews. - 1965. - Vol. 65, No. 2. - pp. 206-208 [DOI: 10.1021/cr60234a003]
  3. Holleman A.F., Wiberg E., Wiberg N. Lehrbuch der Anorganischen Chemie. - Berlin: Walter de Gruyter, 1995. - pp. 427-428
  4. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 244 [Russian]
  5. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 75 [Russian]
  6. Успехи химии. - 1965. - Т.34, №6. - pp. 982-984 [Russian]
  7. Успехи химии. - 1966. - Т.35, №12. - pp. 2237 [Russian]
  8. Успехи химии. - 1974. - Т.43, №12. - pp. 2155-2159, 2167 [Russian]
  9. Уэллс А. Структурная неорганическая химия. - Т. 2. - М.: Мир, 1987. - pp. 48 [Russian]
  10. Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 549 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru