RbCl在混合溶剂中的介质效应

THE MEDIUM EFFECT OF RbCl IN MIXED SOLVENTS

应用一价阳离子选择电极和氯离子选择电极组成可逆电池．通过测定电池的电动势，根据溶液热力学原理，引用扩展的Ｄｅｂｙｅ－Ｈüｃｋｅｌ公式，计算求得了ＲｂＣｌ在（Ｈ２Ｏ～ＤＭＦ）混合溶剂中的活度系数，一级、二级和总介质效应．并对ＲｂＣｌ的介质效应进行了讨论．

The reversible cells consist of the corning monovalent cation selective electrode (M +-ISE) and choloride selective (Cl --ISE) electrode,namely,Cl --ISERbCl( Q ) H 2O(1- x ),DMF( x )M +-ISE.The electramotive forces (-EmV) of measured cells have been determined at 298 15 K, then the activity coefficients and medium effects ( PME、SME、 Total) of RbCl have been calculated and discussed on the basis of solvation theory of electrolyte solution.