Praseodymium Oxide 99.999%
Praseodymium Oxide 99.999%, code 5991
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 99.999% 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. Praseodymium Oxide in solid solution with ceria, or with ceria-zirconia, have been used to make pigment.
Products available
Product Code: 5991 Standard Specification Typical Analysis Inspection Methods
Grade 99.999% 99.999%  
CHEMICAL COMPOSITION
Pr6O11/TREO (% min.) 99.999 99.999
TREO (% min.) 99 99 Volumetric Method
Loss On Ignition (% max.) 1 0.5
Rare Earth Impurities ppm max. ppm
La2O3/TREO
CeO2/TREO
Nd2O3/TREO
Sm2O3/TREO
Eu2O3/TREO
Gd2O3/TREO
Y2O3/TREO		 2
2
5
1
1
1
2		 1
1
3
1
0.5
0.5
1		 ICP-Atomic Emission
Spectrographic
Non-Rare Earth Impurities ppm max. ppm
Fe2O3
SiO2
CaO
Cl-
CdO
PbO		 2
10
10
50
5
10		 2
6
5
40
5
5		 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.