本文用电动势法测定了298. 15K NaCl 从纯水到5,10,15,20,25,30Wt%蔗糖+水混合物的标准转移自由能和转移活度系数,并结合标准转移焓的文献值得到了其标准转移熵.所得实验规律为:△G_t~θ>0,△H_~θ<0,△S_t~θ<0,且近似与混合溶剂中蔗糖的摩尔分数或混合溶剂介电常数的倒数呈线性关系.这些结果被用来分析 NaCl 在蔗糖水溶液中的溶剂化作用和蔗糖水溶液的结构状况. In this paper, the standard transfer free energy and transfer activity coefficients of 298. 15K NaCl from pure water to 5, 10, 15, 20, 25, 30Wt% sucrose + water mixture were measured by electromotive force method and the literature values ​​of standard transfer enthalpies The standard entropy of entropy transfer is obtained as follows: △ G_t ~ θ> 0, ΔH_ ~ θ <0, △ S_t ~ θ <0, and the approximate molar ratios of sucrose or mixed solvents These results were used to analyze the solvation of NaCl in sucrose aqueous solution and the structural condition of aqueous sucrose solution.