THE STRUCTURE AND COMPLEXATION EQUILIBRIA OF COPPER(II) WITH 4-((4)OVER-BAR-NITROPHENYL)AZO-2-PHENYLOXAZOLIN-5-ONE

被引：1
作者：
BELAL, AAM
机构：
[1] Chemistry Department, Faculty of Science, Assuit University, Aswan
来源：
TRANSITION METAL CHEMISTRY | 1995年 / 20卷 / 04期
关键词：
D O I：
10.1007/BF00139136
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A spectrophotometric method for determining trace amounts of Cu-II using 4-(($) over bar 4-nitro-phenyl)azo-2-phenyloxazolin-5-one has been devised. With this reagent, Cu-II forms a stable chelate, in the 6-9.5 pH range which obeys Beer's law at 555 nm with a molar absorptivity of 4.50 x 10(3) mol(-1) cm(2). Other copper-group metals do not interfere with this process. The stoichiometry and stability constant of the copper chelate has been determined using spectrophotometric, potentiometric and conductometric methods.
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页码：384 / 387
页数：4
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