Description Lanthanum Fluoride Anhydrous, 99.9% (Trace Metals Basis), 25g For Research & Development Not for drug, human, animal, or food use Certificate of Analysis: Appearance (Color) White Appearance (Form) Powder Assay (Metals Basis) 99.9% (REO) Identity by ICP analysis Total metallic impurities (ppm): (Al) 1 (Ca) 30 (Er) 1 (Fe) 7 (Gd) 3 (Mg) <1 (Si) 20 CAS: 13709-38-1 FORMULA: LaF3