Yttrium Oxide 99.9999%
Yttrium Oxide 99.9999%, code 3990
Formula: Y2O3
CAS No.: 1314-36-9
Molecular Weight: 225.81
Density: 5.01 g/cm3
Melting point: 2425 celsium degree
Appearance: White powder
Solubility: Insoluble in water, moderately soluble in strong mineral acids
Stability: Slightly hygroscopic
Multilingual: YttriumOxid, Oxyde De Yttrium, Oxido Del Ytrio
Yttrium Oxide 99.9999% is the most important materials for tri-bands Rare Earth phosphors which give the red colour in colour television and computer tubes. In optical industry, the Yttrium Oxide is used to produce Yttrium-Iron-Garnets, which are very effective microwave filters. It is widely used to make Eu:YVO4 and Eu:Y2O3 phosphors that give the red color in color TV picture tubes. Yttrium Oxide is also used to make Yttrium-Iron-Garnets, which are very effective microwave filters. It is also applied to make optical glass and laser crystal.
Products available
Product Code: 3990 Standard Specification Typical Analysis Inspection Methods
Grade 99.9999% 99.9999%  
CHEMICAL COMPOSITION
Y2O3/TREO (% min.) 99.9999 99.9999
TREO (% min.) 99.9 99.9 Volumetric Method
Loss On Ignition (% max.) 0.5 0.5
Rare Earth Impurities ppm max. ppm
La2O3/TREO
CeO2/TREO
Pr6O11/TREO
Nd2O3/TREO
Sm2O3/TREO
Eu2O3/TREO
Gd2O3/TREO
Tb4O7/TREO
Dy2O3/TREO
Ho2O3/TREO
Er2O3/TREO
Tm2O3/TREO
Yb2O3/TREO
Lu2O3/TREO		 0.1
0.1
0.5
0.5
0.1
0.1
0.5
0.1
0.5
0.1
0.2
0.1
0.2
0.1		 0.05
0.05
0.05
0.05
0.05
0.05
0.05
0.1
0.05
0.1
0.2
0.05
0.15
0.05		 ICP-Atomic Emission
Spectrographic
Non-Rare Earth Impurities ppm max. ppm
Fe2O3
SiO2
CaO
Cl-
CuO
NiO
PbO
Na2O
K2O
MgO
Al2O3
TiO2
ThO2		 1
10
10
50
1
1
1
1
1
1
5
1
1		 0.5
5
3
50
1
1
1
1
1
1
5
1
1		 Spectrographic

Atomic Absorption Spectrographic
The standard specifications are only for reference, custom specification manufactures are welcomed. More detailed information including MSDS sheet, lot weight, packing condition, lead time and price are all ready on request, please just click at Request for Quotation, you will receive our prompt reply within 24 hours.