Holmium Oxide Formula: Ho2O3;M.Wt:377.88 RE purity: min99.99% RE impurities: max100ppm: La2O3 max 1ppm CeO2 max 1ppm Pr6O11 max 1ppm Nd2O3 max 1ppm Sm2O3 max 1ppm Eu2O3 max 1ppm Gd2O3 max 10ppm Tb4O7 max 10ppm Dy2O3 max 10ppm Er2O3max 10ppm Tm2O3max 10ppm Yb2O3max 5ppm Lu2O3max 5ppm Y2O3max 10ppm TREO: min99% Non-RE impurities: Fe2O3 max 3ppm SiO2 max 20ppm CaO max 30ppm Cl- max 180ppm Loss on ignition: max 1% DESCRIPION: Light yellow powder, insoluble in water, soluble in acids USES: For making of metal halide lamp and as a additive in various garnet. PACKING: According to the requirements of clients.