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N,N-二仲辛基乙酰胺(C_6H_(13)(?),简称N_(503)。它具有稳定性高、挥发性低、选择性好、价格便宜、无毒等优点,是目前国内正在推广应用的弱碱类萃取剂之一。用N_(503)萃取金属离子,早有文献报道,但未见到用它萃取金(Ⅲ)的报道。本文介绍用N_(503)-煤油从盐酸体系中萃金(Ⅲ)的条件及在不同pH时用草酸反萃金(Ⅲ)的效率。以斜率法,连续变量法,饱和法及有机相萃合物中无机离子的分析确定被萃络合物的组成。通过红外、紫外光谱探讨了
N, N-dimethylacetamide (C_6H_ (13) (?), Referred to as N_ (503). It has the advantages of high stability, low volatility, selectivity, cheap, non-toxic, One of the weak base extractants that is being promoted and applied.It has been reported in the literature that the extraction of metal ions with N_ (503) has been reported in the literature, but gold (Ⅲ) The conditions of extraction of gold (Ⅲ) in hydrochloric acid system and the efficiency of stripping gold (Ⅲ) with oxalic acid at different pH were analyzed by the slope method, continuous variable method, saturation method and inorganic ions in the organic phase extracts The composition of the complex was explored by infrared and ultraviolet spectroscopy