摘要
研究了以２－（３，５－二氯－２－吡啶偶氮）－５－二甲氨基苯胺（３，５－ｄｉＣｌ－ＰＡＤＭＡ）为指示剂，配位滴定硅酸盐样品中的铝的方法。实验结果表明，在ｐＨ３．８～４．８范围内，终点变色灵敏、准确度高。用于硅酸盐样品中铝的测定，结果准确可靠。
Analytical conditions 2 (3,5 Dichloro 2 Pyridylazo) 5 Dimethylaminoaniline(3,5 diCl PADMA)of as a metallochromic indicator of aluminium in ceramic samples have been studied.At pH 3.8～6 5,the color change at the end point is very sharp and accurate.The indicator has been used to determine aluminium in ceramic samples,and results are satisfactory.
出处
《山东建材学院学报》
1998年第1期59-61,共3页
Journal of Shandong Institute of Building Materials
关键词
铝
配位滴定法
硅酸盐化学
diCl PADMA
aluminium
complex formation titration
