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化学学报
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化学学报 ›› 1960, Vol. 26 ›› Issue (2): 103-107. 上一篇    下一篇

研究简报

大量锆存在时微量钍的比色测定

郭小伟   

  1. 陕西省冶金局冶金研究所
  • 投稿日期:1959-08-03 发布日期:2013-06-03

THE MASKING OF ZIRCONIUM IN PHOTOMETRIC DETERMINATION OF THORIUM

KUO XIAO-WEI   

  1. The Institute of Metallurgy, Bureau of Metallurgical Industry, Shensi
  • Received:1959-08-03 Published:2013-06-03

PDF

560

被引次数

4

本文叙述去氢抗坏血酸可以隐蔽锆与钍试剂的反应,并建议用于以钍试剂比色测定合锆溶液中的钍.最宜操作条件为酸度0.2-0.25N;加热时间一分半,钍试剂浓度为4毫克/50毫升.不同锆钍比例及不同去氢抗坏血酸量存在时均对钍的发色无影响.文中并叙述一快速测定独居石中钍的方法.

In the photometric determination of thoriu.n with thoronol, it is found that dehydroascorbic acid may be used as an effective masking reagent for zirconium. The optimum conditions has been investigated and a procedure is given for the determination of thorium in the presencx of zirrnmum. The method has been used for the determination of thorium in monazite sand and satisfactory results were obtained.