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化学学报
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化学学报 ›› 1964, Vol. 30 ›› Issue (5): 492-495. 上一篇    下一篇

研究简报

微量锆的螯合滴定

洪水皆, 張孝松   

  1. 中国科学技术大学
  • 投稿日期:1963-09-13 发布日期:2013-06-03

CHELATOMETRIC MICRO-DETERMINATION OF ZIRCONIUM

HUNG SHUI-CHICH, CHANG HSIAO-SUNG   

  1. The University of Science and Technology
  • Received:1963-09-13 Published:2013-06-03

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借螯合滴定直接或间接滴定锆已有评述[1],但有关微量锆的报告不多。最近有用苏洛铬紫R(C.I.169)和苏洛铬黑6BN(C.I.201)作指示剂分别滴定低至10和20微克锆,其误差较大(分别为+8.0%及+6.0%)。

In this communication, the use of Methylthymol Blue, Xylenol Orange, 4-(4'-nitro-phenylazo)catechol, Eriochrome Black T and 2-hydroxyl-l-sulfonaphthalene-azo-resorcinol as indicators for the chelatometric micro-determination of zirconium has been studied. The results are summarized as follows.