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Praseodymium ( Pr )

Material Information

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Foil Lump Powder Rod Sputtering Target Wire
Foil Lump Powder Rod Sputtering Target Wire

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General Description:  

Praseodymium was discovered in 1805 by Baron Auer von Welsbach in Vienna, Austria.

Praseodymium is a soft, white metal and a member of the lanthanide group of elements. It closely resembles neodymium and, along with other elements of the same group, is found in the same minerals. It has an abundance in the earth's crust of 9.5 ppm. It reacts slowly with oxygen but rapidly with water.

As a pure metal, its uses are limited; however, it is used as an alloying constituent for alloys used to make permanent magnets and flints. Along with neodymium, praseodymium is used to manufacture yellow glass which can be used as eye protection (e.g. for welders).

   

Atomic Properties

Atomic number 59
Atomic radius - Goldschmidt ( nm ) 0.183
Atomic weight ( amu ) 140.9077
Crystal structure Hexagonal close packed
Electronic structure Xe 4f3 6s2
Ionization potential No. eV
1 5.42
2 10.55
3 21.62
4 38.95
5 57.45
Natural isotope distribution Mass No. %
141 100
Thermal neutron absorption cross-section ( Barns ) 11.5
Valences shown 3, 4

Electrical Properties

Electrical resistivity @20C ( µOhmcm ) 68
Temperature coefficient @0-100C ( K-1 ) 0.00171

Mechanical Properties

Material condition Polycrystalline
Bulk modulus ( GPa ) 31.2
Hardness - Vickers 40
Poisson's ratio 0.312
Tensile modulus ( GPa ) 35.2
Tensile strength ( MPa ) 110
Yield strength ( MPa ) 103

Physical Properties

Boiling point ( C ) 3512
Density @20C ( g cm-3 ) 6.782
Melting point ( C ) 931

Thermal Properties

Coefficient of thermal expansion @0-100C ( x10-6 K-1 ) 4.8
Latent heat of evaporation ( J g-1 ) 2343
Latent heat of fusion ( J g-1 ) 80
Specific heat @25C ( J K-1 kg-1 ) 192
Thermal conductivity @0-100C ( W m-1 K-1 ) 12.5

Buy Praseodymium on-line

We stock and supply the following standard forms:
Foil Lump Powder Rod Sputtering Target Wire
Foil Lump Powder Rod Sputtering Target Wire

Choose a form to search our on-line catalog  

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