Extraction behaviour of Cadmiun(Ⅱ) with a new trilon N,N′-di(dodecyl)ethylenediamien-di-acetic acid (H2R2Y) in chloroform was investigated.Complex ratio between H2R2Y and Cd2+ 1∶1 was substantiationed by cond...Extraction behaviour of Cadmiun(Ⅱ) with a new trilon N,N′-di(dodecyl)ethylenediamien-di-acetic acid (H2R2Y) in chloroform was investigated.Complex ratio between H2R2Y and Cd2+ 1∶1 was substantiationed by conductance and mole ratio method.The influence of acidity,concentration of H2R2Y,phase-radio and temperature of extraction reaction was studied.The results indicated that:percentage extraction of Cd(Ⅱ) increased with the increase of the concentration of H2R2Y and the distribution ratio lgD decreased linearly with the increase of temperature.ΔHo=-7.254KJ·mol-1 for the extraction reaction.展开更多
文摘Extraction behaviour of Cadmiun(Ⅱ) with a new trilon N,N′-di(dodecyl)ethylenediamien-di-acetic acid (H2R2Y) in chloroform was investigated.Complex ratio between H2R2Y and Cd2+ 1∶1 was substantiationed by conductance and mole ratio method.The influence of acidity,concentration of H2R2Y,phase-radio and temperature of extraction reaction was studied.The results indicated that:percentage extraction of Cd(Ⅱ) increased with the increase of the concentration of H2R2Y and the distribution ratio lgD decreased linearly with the increase of temperature.ΔHo=-7.254KJ·mol-1 for the extraction reaction.
文摘以三乙醇胺和氯化亚砜为原料,在N,N-二甲基甲酰胺(DMF)溶剂中经氯代反应合成中间体三(2-氯乙基)胺盐酸盐,然后与过量的氨水在乙醇溶剂中经氨解反应,得N,N-二(2-氨乙基)-1,2-乙二胺.优化实验得出N,N-二(2-氨乙基)-1,2-乙二胺合成反应原料氨水与中间体三(2-氯乙基)胺盐酸盐的最佳摩尔比为30,最佳反应温度为65℃,最优反应时间不低于12 h.