对络合返滴定过程的理论探讨  

Theoretical Study on Process of Complexometric Back Titration

作　　者：任树林[1] 

机构地区：[1]延安大学化学系,延安716000

出　　处：《化学研究》2000年第2期58-61,共4页Chemical Research

摘　　要：推导了络合返滴定曲线方程 ,绘制了络合返滴定曲线和计算了pN突跃。并利用双曲正弦函数的性质 ,提出了内含最大敏锐指数的络合返滴定误差计算公式 ,从而获得了计算络合返滴定pN突跃范围的公式。In this paper, the curvilinear equation of the complexometric back titration has been derived, the complexometric back titration curve has been drawn and the pN break has been calculated. With the quality of the hyperbolic sime function, the calculating error formula which contains the maximum sharpness index for the complexometric back titration has been proposed. Therefore, the formula for calculating the pN break range of the complexometric back titration has been got.

关 键 词：络合返滴工线方程 突跃范围 滴定误差 PN突跃 

分 类 号：O655.25[理学—分析化学]