Tungstic Acid, Reagent, 99.5+%, 500g For Research & Development Not for drug, human, animal, or food use
Specifications: Appearance (Color) Yellow Appearance (Form) Powder Assay (WO3) 99.5+% Fe <0.0002% Cu <0.0001% Al <0.0003% Si <0.0003% Mo <0.0002% Insolubles <0.0035%