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Properties of substance:

thionyl chloride

Group of substances:

inorganic

Physical appearance:

colorless fuming liquid

Empirical formula (Hill's system for organic substances):

Cl2OS

Structural formula as text:

SOCl2

Molar/atomic mass: 118.97

Melting point (°C):

-104.5

Boiling point (°C):

75.6

Decomposition temperature (°C):

80

Solubility (g/100 g of solvent):

benzene: soluble [Ref.]
chloroform: soluble [Ref.]
ethanol: reaction [Ref.]
iodine monochloride: miscible [Ref.]
sulfur dioxide: miscible [Ref.]
water: reaction [Ref.]

Density:

1.655 (10.4°C, g/cm3)

Reactions:

  1. Yeild 50%. [Ref.1]
    [(CH3)3Si]3N + SOCl2 → (CH3)3SiNSO + 2(CH3)3SiCl
  2. [Ref.1aster]
    SOCl2 + 2HBr → SOBr2 + 2HCl

Vapour pressure (Torr):

1 (-56.2°C)
10 (-23.6°C)
100 (20.6°C)

Permittivity (dielectric constant):

9.25 (20°C)

Dipole moment (D):

1.44 (20°C)

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

-247 (l)

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

278.6 (l)

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

120.5 (l)

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

31.8

Standard molar enthalpy (heat) of formation ΔfH0 (298.15 K, kJ/mol):

-212 (g)

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

307.9 (g)

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

66.7 (g)

References:

  1. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 330 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 98 [Russian]
  3. Руководство по неорганическому синтезу. - Т.2, под ред. Брауэра Г. - М.: Мир, 1985. - pp. 424 [Russian]
  4. Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 575-576 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru