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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):
F
6
Xe
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
: 211 (20°C) [
Ref.
]
water
: reaction [
Ref.
]
Density:
3.41 (20°C, g/cm
3
)
3.23 (50.4°C, g/cm
3
)
Reactions of synthesis:
[
Ref.1
]
Xe + 3F
2
=XeF
6
Vapour pressure (Torr):
30 (25°C)
Permittivity (dielectric constant):
4.1 (55°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-277.2 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
387.242 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
131.168 (g)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
5.74
ΔH
sublimation
(kJ/mol):
60.8
Standard molar enthalpy (heat) of formation Δ
f
H (298 K, kJ/mol)
-279.03 (g) [
Ref.
]
-338.15 (s) [
Ref.
]
Standard molar Gibbs energy of formation Δ
f
G (298 K, kJ/mol)
-160.92 (g) [
Ref.
]
-169.03 (s) [
Ref.
]
References:
CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 4-98
Holleman A.F., Wiberg E., Wiberg N. Lehrbuch der Anorganischen Chemie. - Berlin: Walter de Gruyter, 1995. - pp. 427-428
Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 244 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 75 [Russian]
Успехи химии. - 1965. - Т.34, №6. - pp. 982-984 [Russian]
Успехи химии. - 1966. - Т.35, №12. - pp. 2237 [Russian]
Успехи химии. - 1974. - Т.43, №12. - pp. 2155-2159, 2167 [Russian]
Уэллс А. Структурная неорганическая химия. - Т. 2. - М.: Мир, 1987. - pp. 48 [Russian]
Химическая энциклопедия. - Т. 2. - М.: Советская энциклопедия, 1990. - pp. 549 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru