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
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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.
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页码：1342 / 1345
页数：3
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