Terbium Oxide (99.99%)

Terbium OxideFormula:Tb4O7;M.Wt:747.72 RE purity:min 99.99% RE impurities:max 100ppm:La2O3max 5ppm CeO2 max 5ppmPr6O11 max 5ppm Nd2O3 max 5ppm Sm2O3 max 5ppm Eu2O3 max 5ppm Gd2O3 max10ppm Dy2O3 max 5ppm Ho2O3 max 5ppm Er2O3 max 5ppm Tm2O3 max 5ppm Yb2O3 max 5ppm Lu2O3 max 5ppm Y2O3 max 5ppm TREO:min 99% Non-RE impurities:Fe2O3max 2ppm SiO2max 10ppm CaO max 10ppm Cl- max 80ppm Loss on ignition:max 1% DESCRIPION: Brown powder, insolubilize in water, solubilize in acids. USES: As an activator for phosphor and a additive in garnet.