The phase separation behavior of polyoxyethylene sorbitan monolaurate (1.000 mmol/L) was investigated in aqueous micellar solution containing inorganic salt, especially the high concentration of different cationic chlorides including NaCl, KCl, MgCl₂, CaCl₂, BaCl₂ and AlCl₃. The continuous decrease in the cloud point (CP) was observed on adding the univalent cationic chlorides (NaCl and KCl). While the addition of multivalent cationic chlorides initially depress the phase separation and then promote the solvation of surfactant in water phase. The relationship between the reciprocal of CP and the concentration of inorganic salt is found to well linearize in the range of a certain concentration of inorganic salt. The dependence of related constant terms in the obtained equations on the nature of inorganic ions was theoretically discussed. The ionic charge vs. atom radium ratio was also used to probe the difference in the effect of different cations on the phase separation. In the framework of phase separation model, the obtained thermodynamic parameters indicate that the process of phase separation is non-spontaneous and the entropy makes an overwhelming contribution.

研究了聚氧乙烯失水山梨糖醇单月桂酸酯（1.000 mmol / L）在含无机盐的胶束水溶液中的相分离行为，特别是高浓度的各种阳离子氯化物，包括NaCl，KCl，MgCl ₂，CaCl ₂，BaCl ₂和AlCl ₃。在添加一价阳离子氯化物（NaCl和KCl）时，观察到浊点（CP）的连续降低。尽管多价阳离子氯化物的加入最初会抑制相分离，然后促进表面活性剂在水相中的溶剂化。发现CP的倒数与无机盐浓度之间的关系在一定浓度的无机盐范围内很好地线性化。理论上讨论了所得方程中相关常数项对无机离子性质的依赖性。离子电荷与原子镭的比率也用于探测不同阳离子对相分离的影响差异。在相分离模型的框架中，