Praseodymium

Praseodymium

Praseodymium (Pr) is a soft, silvery-yellow rare earth element and typically the fifth most abundant of the lanthanides. It has a melting point of 931 °C and is known for its excellent magnetic and optical properties, especially in alloyed or oxide forms. Praseodymium is sourced from monazite and bastnäsite ores and isolated using solvent extraction and ion exchange techniques.

Goodfellow's high-purity Praseodymium materials cater to the precise needs of advanced research and industrial applications. Available in forms such as foil, powder, rod, and sputtering target, praseodymium is distinguished by its unique magnetic properties and ability to impart a yellow-green color to materials like glass and ceramics. This rare earth metal exhibits strong paramagnetic behavior, making it versatile for various applications. Praseodymium is widely used in the renewable energy sector, automotive industry, and chemical processing. It is crucial in the manufacture of high-strength magnets for electric vehicle motors and wind turbines, contributing significantly to sustainable energy solutions. Additionally, praseodymium oxide acts as a catalyst in petroleum refining, enhancing fuel production efficiency. Goodfellow's praseodymium products are instrumental in driving innovation, supporting pioneering research in magnetic cooling systems and next-generation optical technologies. Their distinctive properties make them essential for researchers and engineers advancing materials science, particularly in applications requiring specialized magnetic characteristics and catalytic performance.



General Properties

PropertyValue
Atomic Number59
Density6.773 g/cm³
Melting Point931 °C
Boiling Point3130 °C
Thermal Conductivity13 W/m·K
Electrical Resistivity89 nΩ·m
Crystal StructureDouble Hexagonal Close-Packed (dhcp)

Mechanical Properties

PropertyValue
Tensile Strength~240 MPa (approximate)
Yield StrengthUnknown / Not well defined
Young’s Modulus52 GPa
HardnessBrinell ~500 (approximate)
Elongation at Break~22%
Poisson’s Ratio0.28

Chemical Properties

PropertyValue
Corrosion ResistanceForms stable oxide layer slowly in air
ReactivityReacts with water and oxygen; fine powder may ignite
Oxidation States+3
Surface OxideForms Pr₂O₃ in air
IdentifierValue
SymbolPr
Atomic Number59
CAS Number7440-10-0
UN NumberUN3089 (powder)
EINECS Number231-120-3
IsotopeTypeNotes
Pr-141StableNatural abundance: ~100%
Pr-142RadioactiveTrace, short half-life

Scientific Applications

Use CaseDescription
Magnet ResearchStudied in permanent magnet alloys (Pr–Nd)
Laser MaterialsUsed in praseodymium-doped optical lasers and amplifiers
SpectroscopyAnalytical standards and calibration in spectroscopy
NanomaterialsPr₂O₃ nanoparticles for catalysis and electronics
Glass ScienceGreen coloration and UV filtering in specialty glass

Industrial Applications
Use CaseDescription
Permanent MagnetsKey component in Pr–Fe and Pr–Nd magnet systems
LightingGreen phosphors for lighting and carbon arc lamps
CatalystsUsed in automotive and industrial catalytic processes
Glass ColoringImpacts green and yellow tinting of specialty glass
CeramicsEnhances high-performance ceramic components

PurityApplicationsNotes
99% (2N)Used in magnet alloys, glass coloring, and general researchStandard grade for industrial and laboratory applications
99.9% (3N)Used in lasers, high-performance magnets, and precision opticsHigh-purity grade for advanced scientific and technical uses
Synonym
Pr
Pr metal
Pr element
Praseodymium metal
Praseodymium element
Praseodymium rare earth metal
Praseodymium rare earth element
Element 59