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硫酸铵存在下碘化钾-乙醇体系萃取分离镉
被引：29
作者：
李全民
耿新华
刘奇
张青芬
机构：
[1] 河南师范大学化学与环境科学学院!新乡
来源：
关键词：
镉;
萃取分离;
乙醇;
碘化钾;
D O I：
暂无
中图分类号：
X132 [环境分析化学];
学科分类号：
083001 ;
摘要：
A study on liquid liquid extraction of cadmium based on KI ethanol in the presence of ammonium sulphate has been performed. It shows that the charged complex compound CdI 2- 4 could be easily extracted into the ethanol phase. Common ions such as Fe 3+ , Co 2+ , Ni 2+ , Mn 2+ , Zn 2+ , Al 3+ and Cr 3+ would not be extracted into the ethanol phase and Cd 2+ could be separated completely from them by mixture of 3.0 g (NH 4) 2SO 4 and 0.2 g KI in 10.0 mL 30%(volume fraction) ethanol solution at pH=1～5.
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页码：69 / 71
页数：3
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