Investigation of production of cupper borate

In this work, the production of copper borate was investigated by precipitation method using boric acid (H3BO3) and borax decahydrate (Na2B4O7.10H2O) as boron source, and copper nitrate trihydrate (Cu(NO3)2.3H2O) as copper source. The precipitation experiments were performed in two different groups. In the first group of experiments, aqueous solutions of H3BO3 and Cu(NO3)2.3H2O were used, while in the second group of experiments, aqueous solutions of Na2B4O7.10H2O and Cu(NO3)2.3H2O were used. During the experiments, the contents of Cu2+ and B2O3 in the samples drawn from solution at different reaction times were determined, and the amounts of the precipitated Cu2+ and B2O3 were calculated. In the experiments, the effects of the solution pH, molar ratio of B2O3/Cu, reaction temperature and reaction time on the formation of copper borate were examined.