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Properties of substance:

praseodymium oxyde

Group of substances:

inorganic

Physical appearance:

trigonal crystals

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

O3Pr2

Structural formula as text:

Pr2O3

Molar/atomic mass: 329.81

Melting point (°C):

2300

Boiling point (°C):

4300

Solubility (g/100 g of solvent):

water: 0.0002 (29°C) [Ref.]

Density:

6.34 (20°C, g/cm3)

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

-1809.6 (s)

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

-1720 (s)

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

117.4 (s)

References:

  1. Seidell A. Solubilities of inorganic and metal organic compounds. - 3ed., vol.1. - New York: D. Van Nostrand Company, 1940. - pp. 1421
  2. Лидин Р.А., Андреева Л.Л., Молочко В.А. Константы неорганических веществ. - М.: Дрофа, 2006. - pp. 155 [Russian]
  3. Редкие и рассеянные элементы. Химия и технология. - Кн. 1. - М.: Мисис, 1996. - pp. 195 [Russian]
  4. Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 176-177 [Russian]

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    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru