Praseodymium oxide (Pr₆O₁₁)

In 1885, founder Carl Auer von Welsbach succeeded in separating the rare earth metal didymium into praseodymium and neodymium, both of which form salts with different colours. This different colouring is the main reason for using these elements. In addition, praseodymium oxide is also used in alloys for special applications.

Pr₆O₁₁ is mainly used as a pigment for colouring glass (table glass, decorative glass) and ceramics (ceramic colourants for tile glazes). It is used as an element in the production of magnets as well as in the production of catalysts.

Reduced to Pr₂O₃, it acts as a corrosion inhibitor (coating) for substrates such as aluminium.