测定纺丝浴中硫酸锌含量的新方法

New determination method of ZnSO_4 percentage in the spinning bath

针对铁氰化钾法测定纺丝浴中硫酸锌浓度时存在的问题 ,尝试使用EDTA(乙二胺四乙酸 )法进行测定 ,并对相同条件下两种方法的测试结果进行了比较 .结果表明 ,EDTA法具有准确度高、化验成本低、操作方便、无毒无害等优点 .

In the light of the problem existing in the determination of the ZnSO 4 percentage in the spinning bath by potassium ferricyanide, the author try to determine it by EDTA(ethylene diamine tetraacetic acid), and compare the results of the two methods under the same conditions. The results show that EDTA method takes the advantage of high accuracy, low cost, convenient operation, non-poison and harmless etc.