Yttrium (III) Oxide, Y₂O₃, 99.999% 5N High Purity Powder

Product Number: PO4502 (100 g), PO4503 (1 kg)
Formula: Y₂O₃
CAS Number: 1314-36-9
Molecular Weight: 225.81 g/mol
Density: 5.01 g/cm³ at 25°C
Melting Point: 2425 °C
Color: white
Average particle size: 5~8 um
Solubility: Insoluble in water.
Purity: 99.999% 5N (Y₂O₃/TREO*)

* TREO - Total Rare Earth Oxides

Applications

Yttriium(III) oxide, Y₂O₃, is used to make phosphors for color TV tubes, yttrium iron garnets for use as microwave filters, high temperature superconductors and gas lighting. It is widely used to stabilize the zirconia to form "Yttria-Stabilized-Zirconia" or YSZ.

Notes: More detailed product information including SDS, certificate of analysis (COA), lead time and volume pricing are available upon request.

Rare Earth Impurities Content (ppm)	Non- Rare Earth Impurities Content (ppm)
Dy₂O₃ <0.5	Fe₂O₃ <1.0
Ho₂O₃ <2.0	SiO₂ <10.0
Er₂O₃ <1.5	CaO <5.0
Tm₂O₃ <0.5	CI^- <100.0
Gd₂O₃ <0.5	CuO <2.0
La₂O₃ <1.0	NiO <2.0
CeO₂ <0.5	PbO <2.0
Pr₆O₁₁ <0.5
Nd₂O₃ <0.5
Sm₂O₃ <0.5
Eu₂O₃ <0.5
Tb₄O₇ <0.5
Yb₂O₃ <0.5
Lu₂O₃ <0.5

References

1. Preparation of Y₂O₃:Eu Phosphor Particles of Filled Morphology at High Precursor Concentrations by Spray Pyrolysis, Adv. Mater., 12: 451-453

2. Re-analysis of defect equilibria and transport parameters in Y₂O₃-stabilized ZrO₂ using EPR and optical relaxation, Solid State Ionics, Volume 134, Issues 3–4, 2 October 2000, Pages 303-321

3. Effect of composition of (La_0.8Sr_0.2MnO₃–Y₂O₃-stabilized ZrO₂) cathodes: Correlating three-dimensional microstructure and polarization resistance, J. Power Sources, Volume 195, Issue 7, 2 April 2010, Pages 1829-1840