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Praseodymium Oxide

Praseodymium Oxide

Category: Rare Earth Oxides

Formula Pr6O11
CAS No. 12037-29-5
Molecular Weight 1021.43

Appearance Brown powder
Solubility Insoluble in water, moderately soluble in strong mineral acids
Stability Slightly hygroscopic

Application: Praseodymium Oxide, also called Praseodymia, used to 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.

Standard Specification:

Grade 99.999% 99.99% 99.9% 99%
CHEMICAL COMPOSITION
Pr6O11/TREO (% min.) 99.999 99.99 99.9 99
TREO (% min.) 99 99 99 99
Loss On Ignition (% max.) 1 1 1 1
Rare Earth Impurities % max. % max. % max. % max.
La2O3/TREO
CeO2/TREO
Nd2O3/TREO
Sm2O3/TREO
Eu2O3/TREO

Gd2O3/TREO
Y2O3/TREO
0.0005
0.0005
0.001
0.0001
0.0001
0.0001
0.0005
0.005
0.005
0.01
0.001
0.001
0.001
0.005
0.01
0.03
0.05
0.01
0.01
0.01
0.01
0.05
0.05
0.7
0.01
0.01
0.01
0.01
Non-Rare Earth Impurities % max. % max. % max. % max.
Fe2O3
SiO2
CaO
Cl-
CdO
PbO
0.0005
0.005
0.01
0.01
0.0005
0.001
0.001
0.01
0.01
0.01
0.0005
0.001
0.003
0.02
0.01

0.02
0.005
0.03
0.02
0.03

Individual Rare earth including Lanthanum, Cerium, Neodymium, Praseodymium, Samarium, Europium, Gadolinium, Dysprosium, Terbium, Holmium, Erbium, Ytterbium, Lutetium, Thulium, Scandium and Yttrium.

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