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.
出处
《光谱实验室》
CAS
CSCD
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)
关键词
丙醇
4-氨基安替吡啉
碘化钾
萃取分离
镉
Propyl Alcohol, 4-Aminoantipyrine, Potassium Iodide, Extraction Separation, Cadmium.
