Description Nickel Metal, Powder, -100+325 mesh, 99.96% (Metals Basis), 100g For Research & Development Not for drug, human, animal, or food use Certificate of Analysis: Appearance (Color) Gray Appearance (Form) Powder Assay (Metals Basis) 99.96% ICP Analysis Confirms Ni component Particle Size -100+325 mesh Total Metallic Impurities (ppm) <325 CAS: 7440-02-0 FORMULA: Ni