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化学学报
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化学学报 ›› 1965, Vol. 31 ›› Issue (1): 91-95. 上一篇    下一篇

论文

微量希土的螯合滴定

洪水皆, 任鸿德   

  1. 中国科学院化学研究所
  • 投稿日期:1964-04-01 修回日期:1964-11-03 发布日期:2013-06-03

CHELOMETRIC MICRO-DETERMINATION OF RARE EARTHS

HUNG SHUI-CHIEH, JEN HUNG-DEH   

  1. Institute of Chemistry, Academia Sinica
  • Received:1964-04-01 Revised:1964-11-03 Published:2013-06-03

PDF

495

被引次数

11

直接或间接螯合滴定常量希土元素已有评述[1].但有关微量希土元素的螯合滴定之报导不多,Flaschka[2]曾借铬黑T等作指示剂于直接或间接滴定少量轻希土元素和钇.程广禄[3]曾报告借PAN作指示剂,以铜返滴定微量希土元素.Лауэр等[4]曾借纸层析法分离后,继以偶氮胂作指示剂,用氯化镧溶液返滴定以测定个别希土元素.

In this communication, the use of Xylenol Orange, Methylthymol Blue, 4-(2'-thiazoly-lazo)-resorcinol (TAR), Arsenazo I, Stilbazo, and Alizarin Red S-Methylene Bluc as indicators for the direct chelometric micro-determination of rare earths arc compared.The results are summarized as follows.