拟静态沸点计法测定非水电解质溶液的渗透系数

本文将非分析循环沸点计［1，2］和拟静态方法3]应用于非水电解质溶液体系的渗透系数的测定，建立了一套拟静态沸点计法测定非水电解质溶液渗透系数的实验装置．经NaCl、NaBr两个甲醇盐溶液体系的检验，相对标准误差小于1％，与传统的苦态法和等压法比较，拟静态沸点计法是一种快速、准确、方便的方法．用该装置分别测定了29巳15K时，＊d、Me。＊Q和BU4＊Br甲酸盐溶液渗透系数，实验值用Pitier方程关联，用关联得到的Pitier相互作用参数计算了盐的活度系数．1实验部分1．1实验原理在等温的条件下，电解质溶液处于汽液平衡时，如果测出…

A New Method of Pseudo-Static Ebulliometer for Determination of Osmotic Coefficients of Nonaqueous Electrolyte Solution

The new method of Pseudo-Static Ebuiliometer for deterdring osmotic co-efficients of nonaqueous electrolyte sohitions was developed at constan temperature. Aset of eaperimental apparatus was constructed. This apparatus was ctherited with NaCl,NaBr in methanol solvent. The results are consistat with the literature values, showingthat the apparatus is reliable and the accuracy is high also. The osmotic coefficients ofsolutions of Nal, Me4NCl, Bu4NBr in methanol solvent were measured at 298.15K. Theresults are fitted by Pitzer equation. The activity coefficients of salts in methanol are cal-ctilated using Pitzer's interaction paramters obtained. The method is rapid, convenientand accurate, compared with the traditional static and isopiestic methods. It gives a pow-erful tool for measuxement of the osmotic coefficients of nonaqueous electrolyte solutions.