氧化还原法测定铁矿石中铁含量的方法探讨  

Potassium Dichromate–Volumetric Method for Iron Determination from Iron Ore

作　　者：阳小宇[1] 

机构地区：[1]湖南化工职业技术学院实验实训处,湖南株洲412004

出　　处：《广东化工》2006年第5期97-98,76,共3页Guangdong Chemical Industry

摘　　要：重铬酸钾法测定铁矿石中铁含量有三种还原铁的方法。实验表明用SnCl2-HgCl2法结果最为准确,TiCl3-Na2WO4法次之,而用甲基橙法结果误差最大。Three ways of reducing the ferric iron to ferrous iron can be used in iron determination from iron ore utilizing potassium dichromate. The experiment indicates that the method of SnCl2-HgCl2 has the best accuracy and precision, and the next is the way of TiCl3-Na2WO4. while using methyl orange as the reducing indicator has the biggest error

关 键 词：铁矿石 氯化亚锡-氯化汞 三氯化钛 甲基橙 还原方法 误差 

分 类 号：TQ153.2[化学工程—电化学工业] X703.1[环境科学与工程—环境工程]