Name :  Praseodymium
Symbol :  Pr
Atomic Number :  59
Atomic Weight :  140.90765
Specific Heat :  0.19 J/gK
Melting Point :  931°C
Vaporization :  296.80 kJ/mol
Boiling Point :  3520°C
Electronegativity :  1.13
Density@293 K :  6.77 g/cm³
Discovered :  C.F. Aver von Welsbach, Austria, 1885
Description :  Silvery white, moderately soft, malleable, ductile metal.
Uses :  Used with neodymium to make lenses for glass maker\'s goggles since it filters out the yellow light present in glass blowing. Alloyed with magnesium creates a high-strength metal used in aircraft engines. Makes up 5% of Mich metal.