【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。更多还原

【Abstract】 By improving the traditional process, a more practical method of analysing the compositions of flyash is introduced. Now CuSO₄ 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.更多还原