Dysprosium Oxide Formula:Dy2O3;M.Wt:373.02 RE purity:min99.9% RE impurities: Gd2O3max0.015% Tb4O7max0.015% Ho2O3max0.01% Er2O3max0.01% Tm2O3max0.01% Yb2O3max0.01% Lu2O3max0.01% Y2O3max0.01% TREO:min99% Non-RE impurities:Fe2O3 max0.0005% SiO2 max0.0020% CaO max 0.0020% Cl- max0.0060% Loss on ignition: max 1% DESCRIPION: White powder, insoluble in water, soluble in acids. USES: As an additive for garnet and permanent magnets, and in the making of metal halide lamp and neutron-controlling bar in nuclear reactor. PACKING: According to the requirements of clients.