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Properties of substance:
phosphine
Group of substances:
inorganic
Physical appearance:
colorless gas
Empirical formula (Hill's system for organic substances):
H
3
P
Structural formula as text:
PH3
Molar/atomic mass: 33.998
Melting point (°C):
-133.8
Boiling point (°C):
-87.42
Solubility (g/100 g of solvent):
1,4-dioxane
: 0.11 (20°C) [
Ref.
]
acetone
: 0.077 (20°C) [
Ref.
]
benzene
: 1.3 (22°C) [
Ref.
]
cyclohexanol
: 0.47 (26°C) [
Ref.
]
diethyl ether
: soluble [
Ref.
]
diethylamine
: 0.05 (20°C) [
Ref.
]
ethanol
: soluble [
Ref.
]
nitrobenzene
: 1 (20°C) [
Ref.
]
pyridine
: 0.2 (20°C) [
Ref.
]
triphenylchloromethane
: 0.27 (20°C) [
Ref.
]
water
: 0.034 (20°C) [
Ref.
]
Numerical data:
Interatomic distances (in pm): 142
Bond dissociation energie (kJ/mol): 322
Bond angles (in degrees): 93.5
Density:
0.0015294 (20°C, g/cm
3
)
Vapour pressure (Torr):
1 (-159°C)
10 (-143°C)
100 (-119°C)
Dissociation:
pK
BH
+
(1) = -14 (°C, water)
pK
a
(1) = 27 (25°C, water)
Dipole moment (D):
0.58 (20°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
5.4 (g)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
13.4 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
210.2 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
37.1 (g)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
1.13
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
14.61
Critical temperature (°C):
51.3
Critical pressure (MPa):
6.54
References:
Везер В. Фосфор и его соединения. - М.: ИИЛ, 1962. - pp. 146-160 [Russian]
Вредные вещества в промышленности: Справочник для химиков, инженеров и врачей. - 7-е изд., Т.3. - Л.: Химия, 1976. - pp. 135-136 [Russian]
Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 54, 460-462 [Russian]
Девятых Г.Г., Зорин А.Д. Летучие неорганические гидриды особой чистоты. - М.: Наука, 1974 [Russian]
Жигач А.Ф., Стасиневич Д.С. Химия гидридов. - Л.: Химия, 1969. - pp. 621-628 [Russian]
Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 443-444 [Russian]
Неорганическая химия. - Под ред. Третьякова Ю.Д., Т.2. - М.: Academa, 2004. - pp. 175-176 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 108 [Russian]
Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 926 [Russian]
Успехи химии. - 1969. - Т.38, №6. - pp. 1089-1105 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru