摘要
报道了一类用简便方法合成的４′（ω羧基烷基）苯并１５冠５（ＬＨ）萃取Ｋ＋的性能研究．考察了萃取剂ＬＨ的羧基与冠环之间桥链长短、萃取溶剂、ｐＨ值及Ｋ＋的配对阴离子对分配比（萃取率）的影响，讨论了溶液中３种配合物ＫＬ的形成机理．结果表明，一定ｐＨ值下生成的１∶１型配合物ＫＬ中羧基与冠环发生了协同配位．
The authors report the extraction of K+ cation from aqueous solution by 4’(ωalkylcarboxyl) Benze15crown5.What influence upon the distribution ratio has been assessed including the side chain length of the complexing agents,pH value and the pairent anions of K+ cation.The formation mechanics of the three complexes has been discussed.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
1998年第3期458-462,共5页
Journal of Sichuan University(Natural Science Edition)
基金
国家自然科学基金
关键词
萃取
分配比
钾离子
羧基烷基苯并冠
4’(ωalkylcarboxyl) Benze15crown5,extraction,distribution ratio,K+ cation
