If a solution of common salt is electrolysed, chlorine gas is released at one electrode but which metal accumulates at the other?
Electrolysed water Electrolysed water Electrolysed water (electrolyzed water, EOW, ECA, electrolyzed oxidizing water, electro-activated water or electro-chemically activated water solution) is produced by the electrolysis of ordinary tap water containing dissolved sodium chloride. The electrolysis of such salt solutions produces a solution of hypochlorous acid and sodium hydroxide. The resulting water is a known cleanser and disinfectant / sanitizer. The electrolysis occurs in a specially designed reactor which allows the separation of the cathodic and anodic solutions. In this process, hydrogen gas and hydroxide ions can be produced at the cathode, leading to an alkaline solution that consists essentially of sodium hydroxide.
Mixed metal oxide electrode Mixed metal oxide electrode Mixed metal oxide (MMO) electrodes are devices with useful properties for use as anodes in electrochemical electrolysis reaction. The term refers to electrodes in which the surface contains several kinds of metal oxides. One kind, usually RuO, IrO, or PtO, is the electrocatalyst which conducts electricity and catalyzes the desired reaction such as production of chlorine gas. The other metal oxide is typically titanium dioxide which does not conduct or catalyze the reaction, but is cheaper and prevents corrosion of the interior. The substrate of the electrode is typically a titanium plate or expanded titanium mesh.