PERIODIC TABLE

Praseodymium

Atomic No. 59 Pr Praseodymium

About Praseodymium

Praseodymium is a lanthanide with atomic number 59 that commonly forms +3 compounds and can also occur in the +4 oxidation state. It is used in permanent magnet alloys and to color glasses and ceramic glazes. Praseodymium oxide is also a constituent of didymium glass, which filters selected wavelengths in protective eyewear for glassworking.

Properties

Atomic Number
59
Atomic Symbol
Pr
Atomic Mass
140.9077
CAS No.
7440-10-0
Density
6.64 g/cm³
Series
lanthanoid
Melting Point
931°C
Boiling Point
3,290°C
Thermal Conductivity
0.13 W/cm °C
Heat of Fusion
6.9 kJ/mol
Heat of Vaporization
330 kJ/mol
Electronegativity
1.13 pauling
Crystal Structure
Hexagonal
Electrical Conductivity
1.4×106 S/m

Praseodymium Products

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