浅析中碱玻纤配合料中纯碱测定指示剂的调整

ALTERATION OF INDICATOR FOR SODAASH DETERMINATION IN C-GLASS BATCH

通过溴甲酚绿-甲基红指示剂和甲基橙指示剂分别在基准物质和配合料中的滴定结果的分析对比,论证了配合料中纯碱测定所用指示剂——甲基橙指示剂调整为溴甲酚绿-甲基红指示剂的可行性,提高了试验的准确性和精确度。

Through the comparison between the results of titration in standard substance and C-glass batch using bromocresol green - methyl red indicator and methyl orange indicator separately, it was demonstrated that the methyl orange indicator formerly used for determining soda ash in glass batch could be changed to bromocresol green - methyl red indicator, and this could increase the accuracy and precision of the test,