Also known as Tungsten Trioxide or Tungstic Anhydride the Tungsten Oxide we offer is used as a component for the production of various products. We make available in secured packing the Tungsten Oxide (Â WO3). The company also offers to the clients Catalyst grade and Pigment grade tungsten Oxide. Properties Yellow powder appearenceMolecular Weight of 232 gm / mol Water insolubleSoluble in alkali Applications Used as heterogeneous catalystIdeal for production of tungsten metal powderElement in Paints / high temperature pigments for ceramics