· CAS:7440-10-0
· Molecular Formula: Pr
· Purity:99.9%
· Specification:- 100 mesh / - 200 mesh
· EINECS No.:231-120-3
· Hazardous Class:Class 4.1
UN No.:UN3089
Package Class:Vacuum Bag or with argon protection sealed
Praseodymium Metal (Pr)-Powder
Characteristic
Praseodymium is a chemical element with the symbol Pr and atomic number 59. It is the third member of the lanthanide series and is traditionally considered to be one of the rare-earth metals. Praseodymium is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical properties.
Phase at STP： solid
Melting point： 1208 K (935 °C, 1715 °F)
Boiling point： 3403 K (3130 °C, 5666 °F)
Density (near r.t.)： 6.77 g/cm3
when liquid (at m.p.)： 6.50 g/cm3
Heat of fusion： 6.89 kJ/mol
Heat of vaporization： 331 kJ/mol
Molar heat capacity： 27.20 J/(mol·K)
Chemical Composition
Rare Earth Impurity(≤) | Pr/RE | ≥99.5% |
Item | La/RE | Ce/RE | Nd/RE | Sm/RE | Y/RE |
Content(%) | 0.030 | 0.030 | 0.220 | 0.030 | 0.030 |
Non-Rare Earth Impurity(≤) | RE | ≥99% |
Item | Fe | Si | Al | Ca | Mg |
Content(%) | 0.180 | 0.014 | 0.015 | 0.010 | 0.010 |
Item | O | W | Mo | C |
|
Content(%) | 0.017 | 0.01 | 0.031 | 0.032 |
|
Application
Praseodymium is used as high-strength alloying agent in the Magnesium used in parts of aircraft engines. It is an important alloying agent in Neodymium-Iron-Boron magnets. Praseodymium is used to create high-power magnets notable for their strength and durability. It also used in lighters, torch strikers, 'flint and steel' fire starters, etc.
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