高效减水剂中硫酸钠间接滴定法的研究

Study on indirect titration of sodium sulfate in superplasticizer

本文研究了用EDTA间接滴定法测定高效减水剂中Na2 SO4 的含量 ,该方法简单、易行 ,快速 ,回收率 99%以上 ,相对标准偏差小于 1 5 % ,同标准方法对照及样品测定令人满意。

Indirectly titrating EDTA for determining the sodium sulfate content in superpl asticizer was st udied.The analytical method is featured by simplicity,ease and qnickness,with re covery 99% and standard relative deviation of 1 5%.Satisfactory result was obtained in comparison with standard method and defermination of the samples.