配位返滴定中滴定剂的选择

Selection of Titrant in Complexometric Revertitration

本文从配位平衡出发讨论了配位返滴定中的溶液平衡,得出了配位返滴定中滴定剂选择的判别式:1gCK_(Dy)’≥1gDK_(My)’≥6.最后通过实验证明采用不同的返滴定剂测定同一金属离子的滴定结果.

In this paper, the solution equilibrium for complexometric revertitration is discussed proceeding from complex equilibrium. Authors have obtained th discriminant about selection of titrant :Finally, experimental results determined identical metal ion are presented by different revertitrants.