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Properties of substance:

thallium(I) iodide

Synonyms:

thallium iodide

Group of substances:

inorganic

Physical appearance:

yellow rhombic crystals

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

ITl

Structural formula as text:

TlI

Molar/atomic mass: 331.27

Melting point (°C):

441

Boiling point (°C):

833

Solubility (g/100 g of solvent):

acetone: sparingly soluble [Ref.]
ethanol 90%: 0.00038 [Ref.]
pyridine: sparingly soluble [Ref.]
sulfur dioxide: 0.06 (0°C) [Ref.]
water: 0.0064 (20°C) [Ref.]
water: 0.00847 (26°C) [Ref.]
water: 0.015 (40°C) [Ref.]
water: 0.035 (60°C) [Ref.]
water: 0.07 (80°C) [Ref.]
water: 0.12 (100°C) [Ref.]

Vapour pressure (Torr):

0.1 (369°C)
1 (436°C)
10 (533°C)
100 (824°C)

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

-123.7 (s)

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

-125.3 (s)

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

127.7 (s)

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

53.3 (s)

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

101.7

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

16 (g)

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

277 (g)

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

37.2 (g)

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

14.7

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1552
  2. Некрасов Б.В. Основы общей химии. - Т.2. - М.: Химия, 1973. - pp. 70-71 [Russian]
  3. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 102 [Russian]
  4. Справочник по растворимости. - Т.1, Кн.1. - М.-Л.: ИАН СССР, 1961. - pp. 312 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru