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

被引：4
|
作者：
Zalov, A. Z. [1 ]
机构：
[1] Azerbaijan State Pedag Univ, Fac Chem, Baku 1000, Azerbaijan
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 2015年 / 70卷 / 11期
关键词：
complexation; extraction; tungsten; 2-hydroxy-5-chlorothiophenol; diphenylguanidine; MOLYBDENUM;
D O I：
10.1134/S106193481509018X
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
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 x 10(4). The molar ratio of components in the complex is 1: 2: 2.
引用
收藏
页码：1342 / 1345
页数：4
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