Reasons for the low pH value of the anode solution in the electrolytic cell
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The cells in our plant to which new membranes were installed and brought online yesterday have anodes that have been repainted, while the cathodes have had their membrane spacing modified after one membrane cycle. With the newly installed ion membranes, the pH of the anode solution is 3.03 (without the addition of acid). It’s never been this low before. Please help, thank you!
Brine pH? Confirm there is no internal leakage when acid is added?
What is the current of this electrolyzer? Chlorine purity? Does chlorine contain oxygen? What is the chlorate content in your brine system? When the electrolyzer is operated without adding acid, I don’t think this pH value is abnormal. During the initial phase of the new membrane, there is very little reverse migration of hydroxide ions.