1974•The AnalystRequires access
Photometric determination of manganese in water by using o-tolidine
Josef Malý, Hubert Fadrus
Open publisher page 12 citations
Abstract
Oxidation products of manganese react with o-tolidine to produce a yellow colour, which can be utilised for the photometric determination of manganese. Prior to the determination, divalent manganese is converted into the higher valency forms by oxidation with atmospheric oxygen in alkaline solution in the presence of magnesium and iron(III) salts.