Can Ammonium Metatungstate Be Used As a Precursor for The Synthesis of Other Polyoxometalates? 2023-02-28 Tungsten Oxide 154 Yes, ammonium metatungstate can be used as a precursor for the synthesis of other polyoxometalates, such as tungstophosphoric acid and tungstosilicic acid, by reacting with appropriate metal salts. 0 0 ammonium metatungstatepolyoxometalates