A Study on the Current Efficiencies in the Electrolytic Preparation of Sodium Chlorate by Lead Dioxide Anode

二酸化鉛 陽極에 의한 鹽素酸나트륨 電解製造에 있어서 電解條件 및 電流效率에 관한 硏究

On the electrolytic preparation of sodium chlorate, lead dioxide anode, instead of graphite was tested to find out the characteristics for current efficiency and life in various conditions. The results obtained are summerized as follows; 1. The current efficiency is slightly increased with the anode current density, until 25A/$dm^2$ 2. The higher the current concentrations. the lower current efficiencies are observed, particularly in case of both not-adding the potassium dichromate and large current concentration of more than 50A/l 3. The current efficiency may be improved linearly as the both temperature is raised.