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In electrolyzers with or without diaphragm, electrolysis of sodium chloride and/or hydrochloric acid aqueous solution produces an acidic aqueous solution (pH<7) with hypochlorous acid as the main sterilizing component. Among them, the pH of acidic oxidation potential water (strongly acidic electrolyzed water) is 2.0-3.0, and the pH of slightly acidic electrolyzed water is 5.0-6.5.
Fig 1 The generation principle of strong acid electrolyzed water (two-chamber type) Fig 2 Principle of generating slightly acidic electrolyzed water (one-chamber type)
Hypochlorous acid disinfectant with hypochlorous acid
The disinfectant stock solution contains a stable hypochlorous acid disinfectant.
The main functional component of acidic electrolyzed water/hypochlorous water is hypochlorous acid. Hypochlorous acid can be produced by electrolyzing dilute hydrochloric acid, sodium chloride solution, or acidifying sodium hypochlorite with hydrochloric acid. The form of chlorine in water is related to the pH value. When the pH value is 5.0-6.5, it mainly exists in the form of hypochlorous acid. Therefore, you can mix low-concentration sodium hypochlorite solution with hydrochloric acid (or acetic acid, citric acid, etc.) solution , Adjust the pH value to generate hypochlorous acid. In addition, it is possible to generate hypochlorous acid by electrolyzing a low-concentration hydrochloric acid and/or aqueous sodium chloride solution using a diaphragm or non-diaphragm electrolytic cell.
Fig 3 The production mechanism of hypochlorous acid in the human body
In biological systems, hypochlorous acid (HClO) is produced by the oxidation of chloride ions under the combined action of neutrophil-derived myeloperoxidase and hydrogen peroxide. The results of quantitative analysis showed that within 2 hours of incubation time, 100,000 activated neutrophils could produce about 2×10-7 mol of hypochlorous acid.
