Holmium Oxide, also called Holmia, has specialized uses in ceramics, glass, phosphors and metal halide lamp, and dopant to garnet laser. Holmium can absorb fission-bred neutrons, it is also used in nuclear reactors to keep atomic chain reaction from running out of control. Formula: Ho2O3 CAS No.:12055-62-8 Molecular Weight: 377.86 Appearance: Light yellow Solubility: Insoluble in water, moderately soluble in strong mineral acids Stability: Slightly hygroscopic Purity: Ho2O3/TREO≥99.9% TREO≥99% LOI≤1% Non Rare Earth Impurities: Fe2O3≤20ug/g CaO≤100ug/g SiO2≤100ug/g