The Study of Solubility of Barium Nitrate Prepared from Barium Chromate and Nitric Acid

In this paper, the solubility of barium nitrate prepared from barium chromate and nitric acid was investigated. The effects of reaction time, reaction temperature, stirring rate, the concentration of nitric acid and the amount of the initial content of barium chromate have been studied. The results showed that the solubility of barium nitrate decreased with increasing reaction time, stirring rate and concentration of nitric acid, increased with reaction temperature but had nothing to do with the amount of the initial content of barium chromate. Finally, the reaction optimum conditions were determined that the reaction time was kept at 30 min, reaction temperature was 40-50 °C, stirring rate was 100-200 rpm, and the concentration of nitric acid was 15 mol/L.