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Properties of substance:

boehmite

Synonyms:

aluminum oxide hydroxide

Group of substances:

inorganic

Physical appearance:

white rhombic crystals

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

HAlO2

Structural formula as text:

AlO(OH)

Molar/atomic mass: 59.99

Decomposition temperature (°C):

300

Solubility (g/100 g of solvent):

water: insoluble [Ref.]

Density:

3.01 (20°C, g/cm3)

Dissociation:

pKa (1) = 12.22 (25°C, water)
pKa (1) = 12.4 (18°C, water)

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

-985 (s)

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

-910.7 (s)

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

48.43 (s)

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

65.63 (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. Справочник химика. - Т. 3. - М.-Л.: Химия, 1965. - pp. 78 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru