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用滴体积法研究了HDEHP在不同稀释剂-0.05mol·dm~(-3)(H_2,Na_2)SO_4(pH=2.40)体系中的界面性质,认为吸附于液-液界面的是单体HDEHP分子,得到了各体系中HDEHP的C_(min),Г_(max),A_i以及ΔG_(ad)等界面吸附参数.HDEHP在不同稀释剂体系中的界面活性顺序为:脂肪烃>芳香烃>氯仿>甲基异丁基酮,这种变化主要是在体相中和界面上稀释剂与萃取剂、界面上的萃取剂及稀释剂与界面层水之间分子间相互作用的结果.同时讨论了HDEHP在不同稀释剂中的萃取动力学机理.
The droplet volumetric method was used to study the interfacial properties of HDEHP in different diluent-0.05mol · dm -3 (H_2, Na_2) SO_4 (pH = 2.40). The adsorption of HDEHP on the liquid- The adsorption parameters of HDEHP such as C_ (min), Г_ (max), A_i and ΔG_ (ad) were obtained.The order of interfacial activity of HDEHP in different diluents was: aliphatic hydrocarbon> aromatic hydrocarbon> chloroform > Methyl isobutyl ketone, this change is mainly in the body phase and the interface between the diluent and extractant, the interface of the extractant and the diluent and interfacial layer water intermolecular interaction results are discussed at the same time Extraction kinetics of HDEHP in different diluents.