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本工作研究了二甲庚基乙酰胺(N_(503))自盐酸溶液中萃取铟的性能,得出其萃取能力随着酸度的增加而增加。 经斜率法和化学分析法确定,N_(503)自盐酸溶液中萃取铟的反应为: In_(a)~(3+)+H_(a)~++4Cl_(a)~=+nN_(503)(O)?HInCl_4·nN_(503)(O)萃合物中的溶剂化数n随酸度而变化。IR和NMR研究证明,铟是以HInCl_4形式被N_(503)萃入有机相的。在盐酸体系中(HCl<2N),N_(503)对镓、铟、铊的萃取顺序为: Tl(Ⅲ)>Ga(Ⅲ)>In(Ⅲ)
In this work, the extraction of indium from hemin hydrochloride (N_ (503)) was studied. The results show that the extraction ability increases with the increase of acidity. The results of slope method and chemical analysis showed that the reaction of N_ (503) extracting indium from hydrochloric acid solution was: In_ (a) ~ (3 +) + H_ (a) ~ ++ 4Cl_ (a) The solvation number n in the HInCl_4 · nN_ (503) (O) complex varies with acidity. IR and NMR studies have shown that indium is N_ (503) extracted into the organic phase in the form of HInCl_4. The order of extraction of gallium, indium and thallium by N_ (503) is: Tl (Ⅲ)> Ga (Ⅲ)> In (Ⅲ) in HCl system