Rare Earth Product Information
& Standard Specifications
product details
Praseodymium Hydroxide
Praseodymium Hydroxide

Praseodymium Hydroxide, also called Praseodymium Hydrate, used to colour glasses ,enamels and pigments.
Formula Pr(OH)3.xH2O
CAS No. 16469-16-2
Molecular Weight 191.90
Appearance Green
Solubility Insoluble in water, moderately soluble in strong mineral acids
Stability Slightly hygroscopic
GermanPraseodymiumHydroxid FrenchHydroxye De Praseodymium SpanishHidroxido Del Praseodymium
Standard Specifications
Product Code 5951 5953 5955 5957
Grade 99.999% 99.99%  99.9% 99%
CHEMICAL COMPOSITION        
Pr6O11/TREO (% min.) 99.999 99.99 99.9 99
TREO (% min.) 60 60 60 60
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		 0.03
0.03
0.1
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
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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 the product's grade, or Send An Enquiry, you will receive our prompt reply within 24 hours.

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