ο-アミノベンツアルデヒドエチレンジイミンを用いるニッケルの比色分析法

真島 美智雄

doi:10.2116/bunsekikagaku.9.269

ο-アミノベンツアルデヒドエチレンジイミンを用いるニッケルの比色分析法

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真島美智雄

新潟大学工学部

書誌事項

タイトル別名

Colorimetric determination of nickel with ο-aminobenzaldehyde-ethylenediimine
o-アミノベンツアルデヒドエチレンジイミンオモチイルニッケルノヒショクブンセキホウ
有機試薬を用いる化学分析の研究(第4報)

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説明

ο-Aminobenzaldehyde-ethylenediimine and nickel in alkaline solution above pH 9.6 gave quantitative formation of red precipitate. This is soluble in benzene and can be extracted from the aqueous layer. This fact was applied on the colorimetric determination of nickel. The maximum absorption of benzene layer was at 486 mμ and the presence of an excess of reagent had no disturbing influence. The standard estimation curve prepared by application of this wave length followed the Beer's law within this experimental range. An aqueous sodium hydroxide alkaline solution containing tartaric acid had no disturbing influence by the presence of large amount of iron in the determination of nickel. The limit for determination was 0.2γ/ ml. The presence of large amount of sodium salt other than sodium acetate, aluminum, chromium, cadmium, manganese, zinc and antimony salts gave no disturbing influence for analysis of nickel.