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Properties of substance:

diaspore

Synonyms:

aluminum oxide hydroxide

Group of substances:

inorganic

Physical appearance:

white hexagonal crystals

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

HAlO2

Structural formula as text:

AlO(OH)

Molar/atomic mass: 59.99

Decomposition temperature (°C):

420

Solubility (g/100 g of solvent):

water: insoluble [Ref.]

Density:

3.4 (20°C, g/cm3)

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

-981 (s)

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

-923.5 (s)

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

35.2 (s)

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

52.76 (s)

References:

  1. Гринвуд Н., Эрншо А. Химия элементов. - Т.1. - М.: БИНОМ. Лаборатория знаний, 2008. - pp. 231-232 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 52 [Russian]
  3. Чалый В.П. Гидроокиси металлов (закономерности образования, состав, структура и свойства). - Киев: Наукова думка, 1972. - pp. 16-17 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru