硫酸铵存在下碘化物-4-氨基安替吡啉-丙醇体系萃取分离镉1  

Separation of Cadmium by Iodide-4-Aminoantipyrine-Propyl Alcohol Extraction System in the Presence of Ammonium Sulphate

作　　者：王贵方[1] 李志敏[1] 邢云[1] 

机构地区：[1]安阳师范学院化学系,河南省安阳市455000

出　　处：《光谱实验室》2005年第6期1264-1267,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：河南省青年骨干教师资助课题(2001225179)

摘　　要：研究了在硫酸铵存在下,碘化物-4-氨基安替吡啉体系萃取镉的行为以及丙醇水溶液的分相条件。实验表明,丙醇作为萃取溶剂能萃取中性离子缔合物。调节溶液pH=2.0—3.0,该体系能使Cd2+从常见过渡元素Fe^(2+)、Co^(2+)、Mn^(2+)、Ni^(2+)、Zn^(2+)的混合液中分离出来。The charged complex compound CdI4^2- can form a kind of ion-association complex with 4-aminoantipyrine, and it is easily extracted into the propyl alcohol phase based on iodide- 4-aminoantipyrine-propyl alcohol in the presence of ammonium sulphate in a proper condition of phase separation of propyl alcohol and water. This system can be used to completely separate Cd^2＋ from Fe^2＋ ,Co^2＋ ,Mn^2＋ ,Ni^2＋ ,Zn^2＋ at pH=2.0-3.0.

关 键 词：丙醇 4-氨基安替吡啉 碘化钾 萃取分离 镉 

分 类 号：O652.62[理学—分析化学] O657.32[理学—化学]