Praseodymium is a silvery-yellow metallic metal that oxidizes moderately in air forming a green oxide coating. The metal is soft, malleable and ductile. It has a hexagonal structure, a density of 6.782 gm/cm3, a melting point of 931 °C, and a boiling point of 3520 °C.Praseodymium oxide, or praseodymia, occurs as a sesquioxide with the formula Pr2O3 and as 6 other oxide phases. The sesquioxide Pr2O3 is a yellow powder with a body centered cubic structure, a specific gravity of 6.9 gm/cm3, a melting point of 2183 °C, a boiling point of 3760 °C, and a formula weight of329.813. The stable form in air at ambient temperatures is Pr6O11, a black powder with a monoclinic structure, a specific gravity of 6.34 gm/cm3, a melting point of 2500 °C, a boiling point of 4200 °C, and a formula weight of 1021.43. Praseodymium is most widely used as an alloying agent with magnesium for high-strength metal applications in aircraft engines. It is also used in super magnets, catalytic converters, UV protective glasses, carbon arc lights, and CAT scan scintillators. The element isadditionally used as a doping agent in fibre optic cables, and in several metal alloys. Purity: Pr/TREM ≥ 99% Packing: In iron drums with inner double PVC bags of 100kg net each, or packed according to customers' specifications.