尾气中微量游离氯的分析

Analyzing the Minim Free Chlorine in the Tail Gas

尾气中的游离氯经碘化钾溶液吸收 ,使其转化为等分子的游离碘 ,用Na2 S2 O3标准溶液滴定 ,该分析方法的相对误差小于2 % ,相对标准偏差小于 4%。

The minim free chlorine in the tali gas is absorbed by KI solution and transformed to the equimolecular free iodine.then analyze the content of the free iodine by using Na 2S 2O 3 standard solution.The relative error of the method is less than 2%,The relative standard error ia less than 4%.