摘要
对EDTA铁碘盐的铁含量测定做测定方法、测定条件和回收率的分析和探讨。在酸性条件下,三价铁离子可氧化碘离子,并游离出单质碘。以硫代硫酸钠标准溶液漓定,以淀粉显色为指示剂,可测定铁含量。实验表明用碘量法测定EDTA铁钠中铁的含量的方法是可行的。
This paper analyzes and discusses the determination method,determination condition and recovery rate in the iron determination of Nave EDFA.In the acid condition,iodine ions can be oxidized by three-valent iron ions and elementary iodine can be separated.With sodium hyposulphite standard solution used in titration and starch developing agent as indicator, lron content can be determined.The experiment indicates that determination of iron in Nave EDTA with iodimetry is feasible.
出处
《中国井矿盐》
CAS
2007年第1期45-48,共4页
China Well and Rock Salt
