This article discusses the acidic potassium permanganate method of permanganate index from the following aspects: heating time, titrate temperature and titrate speed, end point of titration.

前言：文章对高锰酸盐指数加热时间、滴定温度、速度、滴定终点的控制进行了探讨。

youdao

This article discusses the acidic potassium permanganate method of permanganate index from the following aspects: heating time, titrate temperature and titrate speed, end point of titration.

前言：文章对高锰酸盐指数加热时间、滴定温度、速度、滴定终点的控制进行了探讨。

youdao