高純度亜鉛の定量分光分析法の実施に関する諸問題

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タイトル別名
  • Study on the Problems Concerning the Routine Spectrochemical Analysis of High Purity Zinc. (Application of Quantitative Spectrochemical Analysis to Lead, Zinc and Cadmium Refining Industry, 9th Report)
  • コウジュンド アエン ノ テイリョウ ブンコウ ブンセキホウ ノ ジッシ ニ カンスル ショモンダイ

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抄録

Practical problems concerning the application of proposed spectrochemical method to routine industrial analysis were studied. (1) The loss of impurity Sn in the course of dissolution of sample Zn in HC1 and of the subsequent concentration of the dilute ZnCl2 solution to 1.95 in specific gravity is prevented by small addition of H3PO4. (2) The allowable range of specific gravity in preparation of sample solution is 1.98∼1.93, in which the variation of ZnCl2 concentration does not affect the analytical precision and accuracy. (3) The procedures of background correction,proposed in ASTM E116-56T, were studied and simplified by using the galvanometer deflection, instead of optical density or Seidel function. (4) Spectrochemical sensitivities of 13 elements in ZnCl2 70% solution,which are presented in Table 3, were studied under the previously proposed conditions. (5) Some analytical results of commercial high purity Zn, are shown in Table 4 as practical example of this spectrochemical analysis.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 24 (6), 355-359, 1960

    公益社団法人 日本金属学会

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