Main page (Russian) Search in database (English)

Properties of substance:

samarium(III) oxide

Group of substances:

inorganic

Physical appearance:

yellow cubic crystals

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

O3Sm2

Structural formula as text:

Sm2O3

Molar/atomic mass: 348.72

Melting point (°C):

2270

Solubility (g/100 g of solvent):

sodium hexafluoroaluminate molten: 25.6 (1050°C) [Ref.]
water: insoluble [Ref.]

Density:

8.35 (20°C, g/cm3)

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

-1823 (s)

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

-1734.6 (s)

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

151 (s)

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

114.5 (s)

References:

  1. CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-17
  2. Ефимов А.И. и др. Свойства неорганических соединений. Справочник. - Л.: Химия, 1983. - pp. 186-187 [Russian]
  3. Химическая энциклопедия. - Т. 4. - М.: Советская энциклопедия, 1995. - pp. 289-290 [Russian]

    What information do you need?




    © Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru