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Properties of substance:
phosphonium iodide
Group of substances:
inorganic
Physical appearance:
colorless tetragonal crystals
Empirical formula (Hill's system for organic substances):
H
4
IP
Structural formula as text:
PH4I
Molar/atomic mass: 161.91
Melting point (°C):
18.5
Boiling point (°C):
62.5
Decomposition temperature (°C):
30
Solubility (g/100 g of solvent):
water
: reaction [
Ref.
]
Density:
2.86 (g/cm
3
)
Vapour pressure (Torr):
50 (20°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-69 (s)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
123 (s)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
109.6 (s)
References:
The Merck Index 11th ed., Merck & Company, 1989. - pp. 1166
Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 208-209 [Russian]
Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 444 [Russian]
Спицын В.И., Мартыненко Л.И. Неорганическая химия. - Ч.1. - М.: ИМУ, 1991. - pp. 137 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru