锰矿中钙和镁的络合滴定

Complexometric Determination of Calcium and Magnesium in Manganese Ores

锰矿中钙、镁的测定方法很多,每种方法的应用可根据不同岩性及具体测试条件而确定,本文所介绍的方法是在其它分析方法的基础上加以改进,并经过大量实验及生产现场实践,此分析方法可满足分析质量要求。

This method is based on ths precipitation of large amounts of manganese and other interfering elements with phen- CNS- DDTC in hexamethylene- tetra- mine medium （pH6）. Calcium and magnesium are determined by EDTA titra--tion.