Optical glasses
Chemical Abstracts Service (CAS NO.): 12037-29-5
EC index number (EC no.): 234-857-9
Praseodymium oxide or also called praseodymium(III) oxide can be obtained like praseodymium(IV) oxide PrO2 by reaction of praseodymium with oxygen.
Praseodymium(III) oxide is a black powder that is insoluble in water. It occurs in both a white hexagonal form and a yellow to green cubic crystal structure.