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Acta Chimica Sinica ›› 1964, Vol. 30 ›› Issue (4): 406-411. Previous Articles     Next Articles

钍的分析化学 Ⅱ.用碘酸高铈共沉淀法分离痕量钍

嚴仁蔭, 朱貴云   

  1. 北京大学化学系
  • 投稿日期:1963-12-26 发布日期:2013-06-03

ANALYTICAL CHEMISTRY OF THORIUM Ⅱ. SEPARATION OF TRACE AMOUNTS OF THORIUM BY COPRECIPITATION WITH CERIC IODATE

YEN JEN-YIN, ZHU GUEI-YUN   

  1. Department of Chemistry, Peking University
  • Received:1963-12-26 Published:2013-06-03

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Judging from the closeness of ionic radii of ceric and thorium ions, a method is proposed for the concentration of traces of thorium by coprecipitation with ceric iodate. By means of Th234 as a tracer and photometric determination with arsenazo Ⅰ, it is shown that quantitative recovery of thorium can be achieved.