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Properties of substance:

potassium iodate

Group of substances:

inorganic

Physical appearance:

colorless monoclinic crystals

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

IKO3

Structural formula as text:

KIO3

Molar/atomic mass: 214.001

Melting point (°C):

560

Solubility (g/100 g of solvent):

ammonia liquid : insoluble [Ref.]
ethanol: insoluble [Ref.]
ethyl acetate: insoluble [Ref.]
ethylenediamine: insoluble [Ref.]
hydrazine: 1 (20°C) [Ref.]
water: 4.6 (0°C) [Ref.]
water: 6.3 (10°C) [Ref.]
water: 8.1 (20°C) [Ref.]
water: 9.2 (25°C) [Ref.]
water: 10.3 (30°C) [Ref.]
water: 12.6 (40°C) [Ref.]
water: 18.3 (60°C) [Ref.]
water: 24.8 (80°C) [Ref.]
water: 32.3 (100°C) [Ref.]
water: 47.5 (150°C) [Ref.]
water: 70.9 (200°C) [Ref.]

Density:

3.89 (20°C, g/cm3)

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

-508.4 (s)

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

-425.5 (s)

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

151.46 (s)

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

106.46 (s)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 823-825
  2. Seidell A. Solubilities of inorganic and organic substances. - 2ed. - New York: D. Van Nostrand Company, 1919. - pp. 536
  3. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 128-129 [Russian]
  4. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 68 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru