金属ニッケル分析法の研究(第3報)マグネシウム定量法

概要

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Colorimetric method of quantitative determination of a small amount of magnesium in nickel metal by use of titan yellow is investigated. Fundamental studies are made on increasing the limit of the amount of detection with the selection of protective colloids, stability of color and the effect of the presence of other metals, as well as the rapid separation of a large amount of nickel by use of electrolysis with mercury cathode and a satisfactory method for industrial analysis is established. The limit of determination by this method is 0. 0002 % and the time required for estimation is 10 hours.