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Properties of substance:
boron trichloride
Group of substances:
inorganic
Physical appearance:
colorless gas
Empirical formula (Hill's system for organic substances):
BCl
3
Structural formula as text:
BCl3
Molar/atomic mass: 117.17
Melting point (°C):
-107
Boiling point (°C):
12.5
CAS №: 10294-34-5
Solubility (g/100 g of solvent):
chlorine liquid
: 190 (-136.4°C) [
Ref.
]
ethanol
: reaction [
Ref.
]
phosphorus(V) trichloride oxide
: sparingly soluble [
Ref.
]
sulfur dioxide
: miscible [
Ref.
]
water
: reaction [
Ref.
]
Density:
1.43 (0°C, g/cm
3
)
Reactions:
[
Ref.1
]
2BCl
3
+ 6H
2
O → 2H
3
BO
3
+ 6HCl
[
Ref.1
]
2BCl
3
+ 3SO
3
→ B
2
O
3
+ 3SO
2
Cl
2
Refractive index (n
D
):
1.428 (12°C)
Vapour pressure (Torr):
1 (-92°C)
10 (-68°C)
100 (-33.5°C)
Surface tension (mN/m):
16.7 (20°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-427 (g)
Standard molar Gibbs energy of formation Δ
f
G
0
(298.15 K, kJ/mol):
-387.2 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
206 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
107 (g)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
6.81
Enthalpy (heat) of vaporization at boiling point Δ
vap
H (kJ/mol)
23.77 (l) [
Ref.
]
Enthalpy (heat) of vaporization Δ
vap
H (kJ/mol)
23.1 (l) [25°C] [
Ref.
]
Critical temperature (°C):
178.8
Critical pressure (MPa):
3.87
Critical density (g/cm
3
):
0.7
References:
Bretherick's Handbook of Reactive Chemical Hazards. - 6 ed., Vol. 1. - Butterworth-Heinemann, 1999. - pp. 61
Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 538-539
Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 19 [Russian]
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 56 [Russian]
Спицын В.И., Мартыненко Л.И. Неорганическая химия. - Ч.1. - М.: ИМУ, 1991. - pp. 217-219 [Russian]
Фурман А.А. Неорганические хлориды (химия и технология). - М.: Химия, 1980. - pp. 128-130 [Russian]
Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 301-302 [Russian]
Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 280 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru