Description Zirconium Metal, Foil 0.25mm thickness, 99.9+% (Metals Basis), 25mm x 25mm For Research & Development Not for drug, human, animal, or food use Certificate of Analysis: Appearance (Color) Silver Appearance (Form) Foil Thickness 0.25mm ICP Major Analysis Confirms Zirconium component Purity (Metals Basis) 99.9+% CAS: 7440-67-7 FORMULA: Zr