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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):

BCl3

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/cm3)

Reactions:

  1. [Ref.1]
    2BCl3 + 6H2O → 2H3BO3 + 6HCl
  2. [Ref.1]
    2BCl3 + 3SO3 → B2O3 + 3SO2Cl2

Refractive index (nD):

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 ΔfH0 (298.15 K, kJ/mol):

-427 (g)

Standard molar Gibbs energy of formation ΔfG0 (298.15 K, kJ/mol):

-387.2 (g)

Standard molar entropy S0 (298.15 K, J/(mol·K)):

206 (g)

Molar heat capacity at constant pressure Cp (298.15 K, J/(mol·K)):

107 (g)

Molar enthalpy (heat) of fusion ΔfusH (kJ/mol):

6.81

Enthalpy (heat) of vaporization at boiling point ΔvapH (kJ/mol)

23.77 (l) [Ref.]

Enthalpy (heat) of vaporization ΔvapH (kJ/mol)

23.1 (l) [25°C] [Ref.]

Critical temperature (°C):

178.8

Critical pressure (MPa):

3.87

Critical density (g/cm3):

0.7

References:

  1. Bretherick's Handbook of Reactive Chemical Hazards. - 6 ed., Vol. 1. - Butterworth-Heinemann, 1999. - pp. 61
  2. Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 11ed. - Wiley-interscience, 2004. - pp. 538-539
  3. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 19 [Russian]
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 56 [Russian]
  5. Спицын В.И., Мартыненко Л.И. Неорганическая химия. - Ч.1. - М.: ИМУ, 1991. - pp. 217-219 [Russian]
  6. Фурман А.А. Неорганические хлориды (химия и технология). - М.: Химия, 1980. - pp. 128-130 [Russian]
  7. Химическая энциклопедия. - Т. 1. - М.: Советская энциклопедия, 1988. - pp. 301-302 [Russian]
  8. Химическая энциклопедия. - Т. 5. - М.: Советская энциклопедия, 1999. - pp. 280 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru