Description Lutetium Oxide, Powder, -325 mesh, 99.99% (Trace Metals Basis), 1g For Research & Development Not for drug, human, animal, or food use Certificate of Analysis: Appearance (Color) White Appearance (Form) Powder Assay (by Metals Basis, REO) 99.99% Assay (by Metals Basis, TREO) 99.99% ICP Analysis Conforms to structure Particle Size -325 mesh Total Metallic Impurities (ppm) (Ca) 80 (Er) <5 (Fe) 9 (Si) 10 (Y) <5 (Yb) 30 CAS: 12032-20-1 FORMULA: Lu2O3