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Properties of substance:

phosphoric tribromide

Group of substances:

inorganic

Physical appearance:

colorless plate-like crystals

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

Br3OP

Structural formula as text:

POBr3

Molar/atomic mass: 286.69

Melting point (°C):

55.7

Boiling point (°C):

192

Solubility (g/100 g of solvent):

benzene: soluble [Ref.]
carbon disulphide: soluble [Ref.]
chloroform: soluble [Ref.]
ethanol: soluble [Ref.]
water: reaction [Ref.]

Density:

2.82 (20°C, g/cm3)

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

-458 (s)

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

45.6

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

-390.8 (g)

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

359.8 (g)

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

90 (g)

References:

  1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 208-209 [Russian]
  2. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 456 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru