摘要
提出了一种较实用的测定粉煤灰化学组成的分析方法,该方法对传统分析方法进行了改进,实验中改用PAN作指示剂,以硫酸铜标准液回滴EDTA二钠标准液,使终点变化有明显改善,提高了测量精度。
By improving the traditional process, a more practical method of analysing the compositions of flyash is introduced. Now CuSO_4 is used as the standard solution to retrotitrate EDTA and PAN as the indicator. The changing of terminal points and measurement accuracy are distinctlv imnrored.
出处
《石家庄铁道学院学报》
1993年第4期56-61,共6页
Journal of Shijiazhuang Railway Institute
关键词
粉煤灰
化学分析
络合滴定
flyash
chemical analysis
complexometric titration
