Effect of Cell Temperature

Figure 6 reports the variation of AC with temperature for the various types of anodes considered. The graphs shown indicate that AC is almost constant between 10 and 40°C, and then diminishes over 40°C. Consequently, it is always indispensable to work at temperatures less than 40°C to prevent the formation of chlorates. In addition, high temperatures favor the reduction of hypochlorite. The formation of chlorate is less at T < 40°C, and, at alkaline values of pH, the decrease in cell current is to caused exclusively by the reduction of hypochlorite. The best yield is immediately noted, in terms of AC, from Ti/Pt and Ti/RuO2 anodes, compared to graphite anodes.

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