Study on oxidation and dissolution of tungsten carbide in water

Abstract

The conductance changes of tungsten carbide powder in water were investigated in order to study the extent of its oxidation and dissolution by Conductivity Meter. The conductances of different suspension were determined as the changes of concentration, temperature, immersion time and pH values with time were measured in this article. Simultaneously, different aqueous media impacting on oxidation and dissolution of tungsten carbide powder was also studied. The experimental data show that conductance changes results from the oxidation and dissolution of tungsten carbide in water. Owing to pH values in different suspension change significantly, There may be formed tungstate ions and dissociated the proton dissociation at the same time.