Yttrium Hydroxide 99.9%
Yttrium Hydroxide 99.9%, code 3955
Formula:  Y(OH)3.xH2O
CAS No.: 16469-22-0
Molecular Weight: 139.91(anhy)
Density: N/A
Melting point: N/A
Appearance: White powder
Solubility: Insoluble in water, moderately soluble in strong mineral acids
Stability: Slightly hygroscopic
Multilingual: YttriumHydroxid, Hydroxye De Yttrium, Hidroxido Del Ytrio
Yttrium Hydroxide 99.9% is applied in making glass. Yttrium is used in the production of a large variety of synthetic garnets, and Yttria is used to make Yttrium Iron garnets, which are very effective microwave filters. The other application is uesd for catalyst.
Products available
Product Code: 3955 Standard Specification Typical Analysis Inspection Methods
Grade 99.9% 99.9%  
CHEMICAL COMPOSITION
Y2O3/TREO (% min.) 99.9 99.9
TREO (% min.) 50 50 Volumetric Method
Rare Earth Impurities % max. %
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		 0.01
0.03
0.01
0.02
0.005
0.005
0.01
0.001
0.005
0.05
0.03
0.001
0.005
0.001		 0.005
0.005
0.005
0.009
0.003
0.003
0.005
0.001
0.005
0.03
0.02
0.001
0.002
0.001		 ICP-Atomic Emission
Spectrographic
Non-Rare Earth Impurities % max. %
Fe2O3
SiO2
CaO
Cl-
CuO
NiO
PbO
Na2O
K2O
MgO
Al2O3
TiO2
ThO2		 0.002
0.03
0.02
0.05		 0.001
0.03
0.01
0.05		 Spectrographic

Atomic Absorption Spectrographic
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