Features Specifications:Neodymium Oxide(99.99%)  Neodymium Oxide Formula:Nd2O3;M.Wt:336.40 RE purity:min99.99% RE impurities: La2O3 max 10ppm CeO2 max 20ppm Pr6O11 max 20ppm Sm2O3 max 20ppm Eu2O3 max 10ppm Gd2O3 max 5ppm Tb4O7 max 2ppm Dy2O3 max 2ppm Ho2O3 max 2ppm Er2O3 max 2ppm Tm2O3 max 2ppm Yb2O3 max 2ppm Lu2O3 max 2ppm Y2O3 max 2ppm TREO:min99% Non-RE impurities:Fe2O3 max 3ppm SiO2 max 10ppm CaO max 10ppm Cl- max100ppm ZnO max 5ppm CuO max 3ppm NiO max 3ppm PbO max 3ppm Loss on ignition: max 1%  DESCRIPION: Pale violet powder, hydroscopic, insolubilize in water, solubilize in mineral acids. USES: For making permanent magnets, laser material, stain of glass and ceramics and as additive of rubber In iron drum of 50KG net with sealed double PVC plastic bags inside.