鉄鋼中の微量コバルトの光度定量法

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タイトル別名
  • Photometric Determination of Microamounts of Co in Iron and Steel. (Studies on Extraction and Determination of Metal Salts with Methyl Isobutyl Ketone V)
  • テッコウ チュウ ノ ビリョウ コバルト ノ コウド テイリョウホウ

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抄録

Studies on photometric determination of microamounts of Co in iron and steel were carried out by extracting the thiocyanate complex with methyl isobutyl ketone. After the separation of most of the ferric ions in hydrochloric acid solution by methyl isobutyl ketone extraction the ferric ion remaining in a queous phase were reduced to ferrous ions with SnCl2, and then the thiocyanate complex of Co was extracted with methyl isobutyl ketone and determined photometrically. This method was modified so as to be applicable to stainless steel samples also. About 0.001% of Co contained in iron and steel can be easily determined by the proposed method.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 25 (3), 178-181, 1961

    公益社団法人 日本金属学会

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