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Properties of substance:

uranium(VI) oxide α form

Group of substances:

inorganic

Physical appearance:

trigonal crystals

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

O3U

Structural formula as text:

UO3

Molar/atomic mass: 286.03

Decomposition temperature (°C):

500

Solubility (g/100 g of solvent):

water: insoluble [Ref.]

Density:

8.34 (20°C, g/cm3)

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

-1230.6 (s)

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

-1153 (s)

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

84.35 (s)

References:

  1. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 206-207 [Russian]
  2. Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 106 [Russian]
  3. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 230-231 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru