SPECTROPHOTOMETRIC STUDY OF ZINC, CADMIUM AND LEAD COMPLEXES WITH MUREXIDE IN BINARY ETHANOL-WATER MIXTURES

被引：11

作者：

FATHI, MR ^{[1
]}

SHAMSIPUR, M ^{[1
]}

机构：

[1] SHIRAZ UNIV,DEPT CHEM,SHIRAZ,IRAN

来源：

SPECTROSCOPY LETTERS | 1993年 / 26卷 / 09期

关键词：

ZN2+; CD2+ AND PB2+; MUREXIDE COMPLEXES; MIXED SOLVENT; STABILITY; SPECTROPHOTOMETRY;

D O I：

10.1080/00387019308010777

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The complexation reactions between murexide and Zn2+ , Cd2+ and Pb2+ ions in C2H5OH-H2O mixtures have been investigated spectrophotometrically. Formation constants of the resulting 1:1 complexes were determined and found to vary in the order Pb2+ > Cd2+ > Zn2+, in all binary ethanol-water mixtures used. There is an inverse relationship between the complex formation constants and amount of water in the mixed solvent. A linear relationship was observed between log K(f) for complexes and the mole fraction of ethanol.

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页码：1797 / 1804

页数：8

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