镀铁溶液中总铁与亚铁含量测定——一种无毒氧化还原滴定法

DETERMINATION OF TOTAL FERRIC AND FERROS CONTENTS IN PLATING SOLUTION -A NON-TOXIC METHOD BASED ON REDOX TITRATION

本文报道在分析镀铁液中总铁含量时,在醋酸介质中用金属锌还原高铁,用硫酸消除过量锌,用高锰酸钾作氧化还原滴定剂。亚铁含量测定,也用高锰酸钾作滴定剂。这样,在测定镀铁液中总铁含量和亚铁含量时,所用试剂均无毒,不污染环境,方法简便,精确度符合工业分析要求。

In the paper, when total ferric content in the plating solution is determined, in acetic acid medium , ferric is reduced by zink, excess zinc is removed by surlfuric acid, potassium permanyanate is taken as redox titrant. When ferric and ferros contents in plating solution is determined, the reagent is non - toxic and no environmental pollution, the analysis method is simple, the accuracy accords with the demand of industrial analysis.