A mixed-ligand complex of tungsten with 2-hydroxy-5-chlorothiophenol and diphenylguanidine

被引：0

作者：

A. Z. Zalov

机构：

[1] Azerbaijan State Pedagogical University,Faculty of Chemistry

来源：

Journal of Analytical Chemistry | 2015年 / 70卷

关键词：

complexation; extraction; tungsten; 2-hydroxy-5-chlorothiophenol; diphenylguanidine;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The complexation of tungsten(VI) with 2-hydroxy-5-chlorothiophenol in the presence of diphenylguanidine is studied by spectrophotometry. Optimal conditions for the formation and extraction of the complex are determined. It is found that a mixed-ligand complex is formed at pH 5–6. Chloroform and dichloroethane are the best extractants. Some physicochemical characteristics of the mixed-ligand complex are determined; the molar absorption coefficient at 480 nm is 5.6 × 104. The molar ratio of components in the complex is 1: 2: 2.

引用

页码：1342 / 1345

页数：3

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