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Properties of substance:

thallium(I) fluoride

Group of substances:

inorganic

Physical appearance:

colorless rhombic crystals

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

FTl

Structural formula as text:

TlF

Molar/atomic mass: 223.37

Melting point (°C):

322

Boiling point (°C):

840

Solubility (g/100 g of solvent):

ethanol: sparingly soluble [Ref.]
hydrogen fluoride : 305 (-25.2°C) [Ref.]
hydrogen fluoride : 450 (-7.8°C) [Ref.]
hydrogen fluoride : 580 (11.9°C) [Ref.]
sulfur dioxide: insoluble [Ref.]
water: 185 (0°C) [Ref.]
water: 245 (25°C) [Ref.]
water: 285 (50°C) [Ref.]

Density:

8.36 (20°C, g/cm3)

Vapour pressure (Torr):

1 (404°C)
10 (474°C)
100 (560°C)

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

-327 (s)

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

-306.2 (s)

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

95.69 (s)

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

54.8 (s)

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

13.87

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

93.43

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

-184 (g)

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

244.5 (g)

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

34.7 (g)

References:

  1. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 70-71 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 102 [Russian]
  3. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 869 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru