摘要
本文研究了ＢＴＡＥＢ作为络合滴定铜的指示剂的分析性能。结果表明，在ｐＨ４．０～６．５范围内，目视滴定０．３～５００ｍｇ铜，终点由蓝色变为紫红色，变色敏锐，准确度高。应用于锡磷青铜和深井泵叶轮合金中铜的分析，结果个人满意。
The properties of BTAEB as metal-lochromic indicator for copper in complexo-metric titration have been studed.BTAEBcan be used at pH4～6.5. The colour changeat the end point is very sharp and the errorsof the end points are very small.The indica-tor has been successfully used for the deter-mination of Cu and Sn in tin bronze and Cuin industrial material
出处
《分析试验室》
CAS
CSCD
北大核心
1996年第2期76-79,共4页
Chinese Journal of Analysis Laboratory
关键词
铜
指示剂
络合滴定
BTAEB
Benzothiazolylazo]-5-diethylaminobenzoic acid
Metallochromicindicator
Copper
Complexometric titration
