Ammonium metavanadate is the inorganic compound with the formula NH4VO3. It is a white solid, although samples are often yellow owing to impurities of V2O5. It is an important intermediate in the purification of vanadium
A 2215 (OTTO) Ammonium metavanadate, 98% Cas 7803-55-6 - used as a catalyst in organic synthesis, and as an analytical reagent in laboratories. It is employed in the preparation of vanadate.