ウラン中ジルコニウムの光度定量法

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タイトル別名
  • Spectrophotometric Determination of Zirconium in Uranium
  • ウラン チュウ ジルコニウム ノ コウド テイリョウホウ

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抄録

Spectrophotometric method for determining zirconium in uranium was developed. The coloured reaction product of zirconyl ions and alizarin sulphonate has maximum absorbancy at the wave length of 52 mμ, and is stable in HCl solution. The interference by uranium complex with alizarin S can be eliminated by oxidizing U4+ ion to UO22+ ion with hydrogen peroxide solution. Ten parts in weight of alizarin S was required for one part of Zr, and the coloration time required was 60 min. The concentration of HCl does not affect the determination at 0.1∼0.5 N. Up to 15 mg Zn2+, 40 mg Mg+, 100 mg Na+, 100 mg K+, 1 mg Fe3+, and 5 mg Al3+ do not interfere the determination of zirconium. By this procedure, satisfactory results were obtained to determine the Zr content of vacuum melt and cast U-Zr alloys.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 25 (2), 128-131, 1961

    公益社団法人 日本金属学会

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