Potassium metavanadate

Potassium metavanadate (CAS 13769-43-2, EC 237-388-8, formula KVO3) is an inorganic vanadium salt also referenced under the trade name K-VAN and the synonyms potassium vanadate and potassium m-vanadate. It carries no assigned E-code and is classified within the salts and minerals category.

In mining and metallurgy, potassium metavanadate functions as a catalyst in vanadium recovery and ore processing operations, where the vanadate anion facilitates oxidation reactions within hydrometallurgical leach circuits. It is also applied in corrosion inhibition systems, where it forms protective oxide layers on metal surfaces by reacting with the substrate under controlled conditions.

Potassium metavanadate is supplied as a powder and is subject to REACH registration requirements within the European Union. Procurement teams should confirm supplier compliance documentation, including Safety Data Sheets aligned with CLP/GHS classification, given the regulatory status of vanadium compounds. Packaging formats and available grades should be confirmed directly with the supplier.