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Properties of substance:

phosphorus(III) fluoride

Synonyms:

trifluorophosphine

Physical appearance:

colorless gas

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

F3P

Structural formula as text:

PF3

Molar/atomic mass: 87.97

Melting point (°C):

-151.5

Boiling point (°C):

-101.4

Solubility (g/100 g of solvent):

water: reaction [Ref.]
ethanol: soluble [Ref.]

Density:

0.003907 (20°C, g/cm3)

Vapour pressure (Torr):

10 (-150°C)
100 (-128°C)

    Dipole moment (D):

    1.03 (20°C)

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

    -956.5 (g)

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

    -935.66 (g)

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

    272.6 (g)

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

    58.7 (g)

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

    0.937

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

    14.58

    Critical temperature (°C):

    -2.05

    Critical pressure (MPa):

    4.326

    References:

    1. Advances in Inorganic Chemistry and Radiochemistry. - 1970. - Vol. 13. - pp. 364-367
    2. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 463
    3. Некрасов Б.В. Основы общей химии. - Т.1. - М.: Химия, 1973. - pp. 454
    4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 108
    5. Фтор и его соединения. – Под ред. Саймонса Дж., Т. 1. - М.: ИИЛ, 1953. - pp. 88-89
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      © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru