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在实验室里,有时要测定溶液的电导或电导变化,以了解离子在水溶液中活动的一些情况,这和容量分析法结合起来,就是我们所熟知的电导滴定。电导滴定用於测定极淡溶液、弱酸、弱碱、弱酸盐、弱碱盐以及某些沉淀反应尤为适合。此外,电导法还可以帮助我们研究溶液中化合物的组成,或有机试剂与金属元素在溶液中形成络合物的状态及稳定常数等,所以电导法在科学研究上和工业上是有实用价值的。目前我国还没有自制较简便精密电导滴定仪的产品;在一般
In the laboratory, it is sometimes necessary to measure the conductance or conductance change of a solution to understand some of the activities of ions in aqueous solutions. This, in combination with volumetric analysis, is known as conductometric titration. Conductometric titration is particularly suitable for the determination of very dilute solutions, weak acids, weak bases, weak acid salts, weak base salts, and certain precipitation reactions. In addition, conductance method can also help us to study the composition of the compounds in the solution, or the organic reagents and metal elements in the solution to form complexes in the state and stability constants, so the conductance method is scientific and industrially useful. . At present, there are no products that can produce simpler precision conductivity titrators in China; in general,