络合滴定中被滴定离子的离子强度允许范围  

The study about the allowable range of ionic strength in complexometric titration

作　　者：乔成立[1] 李文新 乔宇泽[3] 

机构地区：[1]齐齐哈尔大学轻工纺织学院,黑龙江齐齐哈尔161006 [2]齐齐哈尔市第29中学,黑龙江齐齐哈尔161002 [3]中国民用航空飞行学院,四川广汉618307

出　　处：《高师理科学刊》2009年第5期73-75,共3页Journal of Science of Teachers＇College and University

基　　金：黑龙江省高等学校教学改革工程项目

摘　　要：在络合滴定中离子强度对滴定结果的影响很大,当离子强度大到一定的数值时,滴定的终点误差就超出了允许的范围,络合滴定结果就不准确.用Ringbom的副反应思想和其终点误差理论,研究了络合滴定中离子强度理论值的允许范围,解决了这一问题.The ionic strength was large in complexometric titration,when the ionic strength was up to definite value,end point error would go beyond the allowable range,the result of complexometric titration would not be accurate.It was applied to the paper that Ringbom＇s side reaction idea and end point error theory,and studied that the allowable range of theoretical value of ionic strength.

关 键 词：离子强度 副反应系数 条件稳定常数 终点误差 

分 类 号：O655.2[理学—分析化学]