Nitroso R Saltによる亜鉛電解液中のコバルトの比色定量

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概要

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• Nitroso R salt has been applied for the determination of a small amount of cobalt in various samples. This report deals with the determination of cobalt in zinc electrolytic solution and the cobalt in precipitate produced during the process of purification of the electrolyte. For increasing the rapidity of estimation, a filter with wave length 562mμ. has been used and the result indicated that the determination of cobalt in electrolyte as high as 10% Zn and containing cobalt in the ratio of Co: Zn= 1:20, 000 was not disturbed by the presence of zinc; the effects of the addition of Cu<SUP>++</SUP>, Ni<SUP>++</SUP>, Fe<SUP>++</SUP>, Fe<SUP>+++</SUP>, Mn<SUP>++</SUP> and Cd<SUP>++</SUP> on the determination of Co were investigated and found that the presence of 100 time of Cu, 50times of Ni, 200times of Mn, 10times of Fe<SUP>++</SUP>, 200times of Fe<SUP>+++</SUP> and 1000 times of Cd, respectively, than the weight of Co had no effect and good results were obtained for rapid and economical analyses.

• 社団法人 日本分析化学会の論文

著者

• 桂 鉄雄

  同和鉱業株式会社小坂鉱業所

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• Nitroso R Saltによる亜鉛電解液中のコバルトの比色定量

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