Description Germanium(IV) Iodide, 99.999% (Trace Metals Basis), 10g For Research & Development Not for drug, human, animal, or food use Certificate of Analysis: Appearance (Color) Brown Appearance (Form) Powder and/or chunks Purity (Titration by AgNO3, % I) 84.8 – 90.1% ICP Major Analysis Confirms Ge component Purity (Based on Trace Metals Analysis) 99.999% Trace Metal Analysis <0.001% CAS: 13450-95-8 FORMULA: GeI4