高等学校化学学报

高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (2): 115.

• 研究论文 • 上一篇    下一篇

隐蔽剂在螯合滴定中的应用(ⅩⅢ)——二本羟乙酸隐蔽钛(Ⅳ)的研究

陈永兆, 邱若兰, 陈焕光   

  1. 中山大学化学系
  • 收稿日期:1983-12-27 出版日期:1985-02-24 发布日期:1985-02-24

The Uses of Masking Agents in Chelometry(Ⅻ)——The Investigation of Masking Ti with Benzilic Acid

Chen Yongzhao, Qiu Ruolan, Chen Huanguang   

  1. Chemistry Department, Zhongshan University, Guangzhou
  • Received:1983-12-27 Online:1985-02-24 Published:1985-02-24

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摘要： 本文提出用DCTA-二苯羟乙酸隐蔽法滴定钛的新方法,本法选择性高,用于测定钛铁矿、铝土和硅酸盐等的钛,操作简便,结果准确.

Abstract: Benzilic acid was found to be a specific masking agent for Ti at pH 58-5.5.When DCTAis used as the titrant, the so-called "DCTA-Benzilic acid masking method" should be used to titrate the Ti.The selectivity is very high, over 33 metal ions, such as Zr, Th, Bi, Fe, Al, La, Hg, Cu, Ni etc, will not interfere.This method can be used to determine the Ti in titanium ores, bauxites and silicates with rapidity and accuracy.

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