用KIO_3容量法测定镀锌液中的硫脲

Using KIO_3 Capacity Method to Measure Thiourea Content in Galvanizing Liquid

镀锌液中加入微量硫脲会产生极好的效果。用聚乙烯酸和淀粉作指示剂，直接用ＫＩＯ３标准溶液滴定，是简便、快速、准确测定镀液中硫脲的理想方法。

Microadding thiourea to the galvanizing liquid can get good effects. Taking PVA and amylum as indicator,directly titrating with KIO_3 standard solution is the ideal method for measuring thiourea content in galvanizing liquid simply,quickly and accurately.