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Properties of substance:

thallium(I) sulfide

Group of substances:

inorganic

Physical appearance:

black trigonal crystals

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

STl2

Structural formula as text:

Tl2S

Molar/atomic mass: 440.8

Melting point (°C):

448

Boiling point (°C):

1180

Solubility (g/100 g of solvent):

acetone: insoluble [Ref.]
water: 0.02 (20°C) [Ref.]

Density:

8.4 (20°C, g/cm3)

Surface tension (mN/m):

213.6 (500°C)
210 (600°C)
206.5 (700°C)

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

-87.9 (s)

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

-87.8 (s)

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

159

References:

  1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 198-199 [Russian]
  2. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 71 [Russian]
  3. 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