讨论溴甲酚绿-甲基红复合指示剂配制方法

Discussion on Preparation Method of Bromocresol Green-Methyl Red Compound Indicator

通过大量的实验,讨论溴甲酚绿-甲基红复合指示剂的配制方法,在不同比例和不同浓度下混合,用盐酸标准溶液滴定,观察溶液颜色变色情况。

The preparation method of bromocresol green-methyl red compound indicator was discussed. They were mixed under different proportions and concentration, hydrochloric acid standard solution was used to titrate by observing the color change.