A reaction is published for forming of nascent (atomic) hydrogen (H*) from hydronium ions (H₃O⁺) in catholyte (Ignatov, Mosin et al., 2015). It is also observed the production of nascent hydrogen in electrolysis in the transition to H₂ (Mehandjiev et al., 2017). For checking of the theoretical suggestion experiments with potassium permanganate (KMnО₄) are conducted. Potassium permanganate is a strong oxidizing agent. In this compound, manganese is in the +7 oxidation state (Мn⁷⁺). In reduction process the color оf the aqueous solution of KMnO₄ is changed and thus the process could be examined spectrophotometrically Described is a reaction that proves the presence of nascent hydrogen in catholyte using potassium permanganate (Parn et al., 2012). In order to avoid the influence of salts contained in water from other sources, deionized water is used for production of catholyte/anolyte .

Keywords: electrolysis, catholyte, analyte, nascent hydrogen, reduction