We sell praseodymium oxide powder ,can sell at any quantity. Specification for our Cerium oxide Powder and praseodymium oxide powder(Rare metal)1,Density:7.13 g per cm32,Atomic weight:19.15 g per mol3,Melting point:23974, Boiling point:34265,Color:buff or yellow looking6,Use: Use: glass, and scientific research etc.7,purity:99.9% 99.99% purity praseodymium oxide powder