用甲基橙与溴甲酚绿-甲基红作指示剂标定盐酸溶液的差异分析

Differential Analysis of Using Methyl Orange and Bromocresol Green Methyl Red as Indicators to Calibrate Hydrochloric Acid Solution

实验发现在使用无水碳酸钠标定盐酸溶液时,用甲基橙与溴甲酚绿-甲基红作为指示剂标定的盐酸溶液浓度存在一定差异。本文用以上2种指示剂,标定0.3、0.5、0.8、1.0 mol/L盐酸溶液浓度结果的比对分析,探索其结果差异及对甲基丙烯酸丁酯纯度分析结果的影响。

The experiment found that there is a certain difference in the concentration of hydrochloric acid solution calibrated with methyl orange and bromocresol green methyl red as indicators when using anhydrous sodium carbonate to calibrate hydrochloric acid solution.This article compares and analyzes the calibration results of 0.3,0.5,0.8,and 1.0 mol/L hydrochloric acid solutions using the above two indicators,exploring the differences in the results and their impact on the purity analysis of butyl methacrylate.