Yttrium(III) oxide

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Yttrium(III) oxide
Tl2O3structure.jpg
IUPAC name Yttrium(III) oxide.
Other names Yttria,
diyttrium trioxide,
yttrium sesquioxide
Identifiers
CAS number 1314-36-9
RTECS number ZG3850000
Properties
Molecular formula Y2O3
Molar mass 225.81 g/mol
Appearance White solid.
Density 5.010 g/cm³, solid
Melting point

2425 °C

Boiling point

4300 °C

Solubility in water insoluble
Solubility in alcohol
acid
soluble
Structure
Crystal structure Cubic (bixbyite), cI80[1]
Space group Ia-3, No. 206
Coordination
geometry
Octahedral
Hazards
EU classification None listed.
R-phrases Not hazardous
Related compounds
Other cations Scandium(III) oxide,
Lanthanum(III) oxide
Related compounds Yttrium barium
copper oxide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Yttrium oxide is Y2O3. It is an air-stable, white solid substance. Yttrium oxide is used as a common starting material for both materials science as well as inorganic compounds.

References[change | change source]

  1. Yong-Nian Xu; Zhong-quan Gu; W. Y. Ching (1997). "Electronic, structural, and optical properties of crystalline yttria". Phys. Rev. B56: 14993–15000. doi:10.1103/PhysRevB.56.14993 .

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