Praseodymium compounds are used as yellow pigments:
- Praseodymium-Containing Ceramic Pigments (1976), and
- Praseodymium Containing Ceramic Pigments (1975).
Doping praseodymium in fluoride glass allows it to be used as a single-mode fibre optical amplifier: Infrared Transmitting Optical Fibre Materials (1995).
Praseodymium oxide in combination with ceria has been used as an oxidation catalyst: Catalyst (1998).