Praseodymium Oxide 99.9%
Praseodymium Oxide 99.9%, code 5995
Formula: Pr6O11
CAS No.: 12037-29-5
Molecular Weight: 1021.43
Density: 6.5 g/cm3
Melting point: 2183 °C
Appearance: Brown powder
Solubility: Insoluble in water, moderately soluble in strong mineral acids
Stability: Slightly hygroscopic
Multilingual: PraseodymiumOxid, Oxyde De Praseodymium, Oxido Del Praseodymium
Praseodymium Oxide 99.9% is used to make colour glasses and enamels; when mixed with certain other materials, Praseodymium produces an intense clean yellow colour in glass. Component of Didymium glass which is a colourant for welder's goggles, also as important additive of Praseodymium yellow pigments. It in solid solution with ceria, or with ceria-zirconia, have been applied to manufacture oxidation catalysts.
Products available
Product Code: 5995 Standard Specification Typical Analysis Inspection Methods
Grade 99.9% 99.9%  
CHEMICAL COMPOSITION
Pr6O11/TREO (% min.) 99.9 99.9
TREO (% min.) 99 99 Volumetric Method
Loss On Ignition (% max.) 1 0.37
Rare Earth Impurities % max. %
La2O3/TREO
CeO2/TREO
Nd2O3/TREO
Sm2O3/TREO
Eu2O3/TREO
Gd2O3/TREO
Y2O3/TREO		 0.02
0.05
0.05
0.01
0.01
0.01
0.01		 0.01
0.03
0.05
0.01
0.01
0.01
0.01		 ICP-Atomic Emission
Spectrographic
Non-Rare Earth Impurities % max. %
Fe2O3
SiO2
CaO
Cl-
CdO
PbO		 0.003
0.02
0.01
0.025		 0.003
0.02
0.01
0.02		 Spectrographic

Atomic Absorption Spectrographic
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