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P5-5001-M

Pr 1-4mm Pieces 99.9% Pure

Praseodymium

P5-5002-M

PrF3 3-6mm Pieces (melted) 99.9% Pure

Praseodymium Fluoride

P5-5008-M

Pr 1-6mm Pieces 99.99% Pure

Praseodymium

P5-10004-P

PrCl3-xH2O -4 mesh 99.9% Pure

Praseodymium Chloride

P5-10005-P

PrCl3 -20 mesh 99.9% Pure

Praseodymium Chloride

P5-10006-P

PrF3 -60 mesh (melted) 99.9% Pure

Praseodymium Fluoride

P5-10007-P

PrF3 -325 mesh (precipitated) 99.9% Pure

Praseodymium fluoride

P5-10009-P

PrN -60 mesh 99.9% Pure

Praseodymium Nitride

P5-10010-P

Pr6O11 -325mesh (typ. =5 microns brown) 99.999% Pure

Praseodymium Oxide

P5-10011-P

Pr6O11 -325mesh (typ. =5 microns brown) 99.9% Pure

Praseodymium Oxide

P5-10012-P

Pr2O3 -325mesh (typ. =10 microns green) 99.9% Pure

Praseodymium Oxide

P5-10013-P

Pr2S3 -200 mesh 99.9% Pure

Praseodymium Sulphide

P5-10014-P

Pr-Te -20 mesh 99.9% Pure

Praseodymium Telluride

6.1 UN3288 PG III Toxic

P5-10015-P

Pr2O3 <5 microns 99.95% Pure

Praseodymium Oxide

P5-2000-R

Pr Rod 6.35mm dia. 99.9% pure

Praseodymium

P5-2001-R

Pr Rod 12.7mm dia. 99.9% pure

Praseodymium

PR-RD-12.7

Pr Rod 12.7mm dia. 99.9% pure

Praseodymium

PR-RD-3

Pr Rod 3mm dia. 99.9% pure

Praseodymium

PR-RD-6.35

Pr Rod 6.35mm dia. 99.9% pure

Praseodymium

PR-SHT-0.25

Pr Sheet 0.254mm (0.010") Thickness 99.9% pure

Praseodymium

PR-SHT-0.5

Pr Sheet 0.5mm (0.020") Thickness 99.9% pure

Praseodymium

PR-SHT-0.76

Pr Sheet 0.762mm (0.030") Thickness 99.9% pure

Praseodymium

PR-SHT-1

Pr Sheet 1.0mm (0.040") Thickness 99.9% pure

Praseodymium

P5-9000-D

Praseodymium Pr, TREM 99.5% Pr/TREM 99.9% Pure

P5-9002-D

Praseodymium-Calcium-Manganese oxide PrCaMnO, 99.9% Pure - Available in various ratios wt% or at%

Symbol Pr
Atomic number 59
No. of naturallyoccurring isotopes 1
Atomic weight 140.9077
Outer electron configuration 4f36s2
Metal radius(6-coordinate)/pm 182.4
Ionic radius(6-coordinate)/pm IV 85
Ionic radius(6-coordinate)/pm III 99
Eo(M4+(aq)+e- →M3+(aq))/V 2.860*
Eo(M3+(aq)+e- →M(s))/V -2.462
Electrical resistivity(25 oC) μohm cm 68
Density (25°C)/gcm3 6.475
Melting point / °C 935
Boiling point / °C -3020
ΔHfus/kJmol-1 11.3(+/-2.1)
ΔHvap/kJmol-1 331
ΔHf(monoatomic gas)/kJmol-1 356
ΔH(hydration Ln3+)/kJmol- 3413
Ionization energy/kJmol-1 I 522
Ionization energy/kJmol-1 II 1018
Ionization energy/kJmol-1 III 2090
Temperature (oC) @Vap. Pressure
10-8 Torr 800
10-6 Torr 950
10-4 Torr 1150
Techniques
Electron Beam Good
Crucible -
Coil -
Boat Tantalum
Remarks
-