八水氢氧化钡中碳酸盐测定方法的研究

Study on Determination of Carbonate in Barium Hydroxide Octahydrate

选用溴酚蓝法和返滴定法对八水氢氧化钡样品中碳酸盐含量进行分析对比,对测试结果进行了研究,发现这两种方法之间存在较大的差异,并通过进一步的实验发现返滴定法存在一定的局限,最终选定溴酚蓝法。

At present, there are two methods to use for determination of carbonate in barium hydroxide octahydrate Bromophynol Blue method and back titration method. In this paper,we compared these two methods, and found the results got by used these two methods are unlikeness, the former method is more accurate than the latter.