THE TRANSFERENCE NUMBERS OF POTASSIUM CHLORIDE. NEW DETERMINATIONS BY THE HITTORF METHOD AND A COMPARISON WITH RESULTS OBTAINED BY THE MOVING BOUNDARY METHOD
THE TRANSFERENCE NUMBERS OF POTASSIUM CHLORIDE. NEW DETERMINATIONS BY THE HITTORF METHOD AND A COMPARISON WITH RESULTS OBTAINED BY THE MOVING BOUNDARY METHOD
复制标题
DOI：
10.1021/ja01355a025
复制
发表时间：
1931-04
影响因子：
15
通讯作者：
D. Macinnes;M. Dole
中科院分区：
文献类型：
--
作者：
D. Macinnes;M. Dole
我们在本实验室用移动边界法获得了大量关于电解质迁移数的数据，其中大部分尚未发表。许多这些数据差异如此之大，从公布的值获得的迁移数的希托夫方法，问题出现严重在我们的脑海中，是否两种方法（希托夫和移动边界）获得措施的相同性质的解决方案的电解质。以氯化钾为例，Jahnand associates 2用希托夫法在稀溶液中测定阳离子迁移数，得到的值平均比移动边界法高出1%。另一方面，Dewey，3在0.2 N下工作，通过Hittorf方法获得的该常数的值低于MacInnes和Brighton4以及Smith和MacInnes6使用移动边界程序获得的值。然而，我们发现，只要使用较新的动边界结果，就可以从整体上解释一组简单电解质的电导和迁移数据。这是远远不beingtrue参考大多数希托夫数据现在公布。这些新数据及其解释将成为本期刊一系列论文的主题。这显然是非常重要的，以找出是否不一致的结果，这两种方法获得迁移数是由于
We have obtained, in this Laboratory, by the moving boundary method a large amount of data, for themost part still unpublished, on the transference numbers of electrolytes. Many of these data differ so widely from the published values for transference numbers obtained by the Hittorf method that the question arose seriously in our minds as to whether the two methods (the Hittorf and moving boundary) obtain measures of the same property of the solutions of electrolytes. With potassium chloride, for instance, the measurements in dilute solutions by Jahnand associates2 of the cation transference number by the Hittorf method gave values on the average 1% above the determinations by the moving boundary method. On the other hand, Dewey, 3 working at 0.2 N, obtained lower values for this constant by the Hittorf method than those obtained by MacInnes and Brighton4 and Smith and MacInnes6 using the moving boundary procedure. We have, however, found it possible to interpret the conductance and trans-ference data, as a whole, for a group of simple electrolytes provided the newer moving boundary results are used. This is far from beingtrue with reference to most of the Hittorf data now published. These new data and their interpretation will be the subject of a series of papers from this Labora-tory. It was evidently very important to find out whether the disagreement of the results of thetwo methods for obtaining transference numbers is due to