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Properties of substance:

thallium(III) oxide

Group of substances:

inorganic

Physical appearance:

cubic crystals

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

O3Tl2

Structural formula as text:

Tl2O3

Molar/atomic mass: 456.74

Melting point (°C):

717

Decomposition temperature (°C):

400

Solubility (g/100 g of solvent):

water: insoluble [Ref.]

Density:

10 (20°C, g/cm3)

Reactions:

  1. [Ref.1aster]
    2Tl2O3 + 6F2 → 4TlF3 + 3O2

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

-390.4 (s)

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

-321.4 (s)

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

148.1 (s)

References:

  1. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 63 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 102 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru