Main page (Russian)
Search in database (English)
Properties of substance:
phosphorus(III) bromide
Synonyms:
phosphorus tribromide
Group of substances:
inorganic
Physical appearance:
colorless fuming liquid
Empirical formula (Hill's system for organic substances):
Br
3
P
Structural formula as text:
PBr3
Molar/atomic mass: 270.69
Melting point (°C):
-40.5
Boiling point (°C):
173.3
CAS №: 7789-60-8
Solubility (g/100 g of solvent):
arsenic tribromide
: very soluble [
Ref.
]
carbon disulphide
: soluble [
Ref.
]
carbon tetrachloride
: soluble [
Ref.
]
chloroform
: soluble [
Ref.
]
diethyl ether
: soluble [
Ref.
]
ethanol
: reaction [
Ref.
]
water
: reaction [
Ref.
]
Density:
2.87 (20°C, g/cm
3
)
Refractive index (n
D
):
1.697 (26.6°C)
Vapour pressure (Torr):
10 (44.7°C)
100 (102.3°C)
Permittivity (dielectric constant):
3.9 (20°C)
Dipole moment (D):
6 (20°C)
Surface tension (mN/m):
44.7 (0°C)
36 (100°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-132 (g)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-155.7 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
348 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
76.1 (g)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-177 (l)
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol):
38.7
References:
Bretherick's Handbook of Reactive Chemical Hazards. - 6 ed., Vol. 1. - Butterworth-Heinemann, 1999. - pp. 115-116
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 107-108 [Russian]
What information do you need?
© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru