高氯酸-重铬酸钾无汞测铁法  

The Method of No Mercury Salt Determination Iron by Perchloric Acid-potassium Dichromate

作　　者：阎俊英[1] 蒋兰宏[1] 

机构地区：[1]河北师范大学化学学院,河北石家庄050091

出　　处：《河北师范大学学报（自然科学版）》2002年第2期167-168,共2页Journal of Hebei Normal University：Natural Science

摘　　要：提出了以高氯酸代替经典方法中的二氯化汞氧化过量的氯化亚锡 ,重铬酸钾标准溶液滴定 Fe2 +的无汞盐测定铁矿石中全铁的新方法 .用该法测定了铁矿石中的铁含量 ,其相对标准偏差为 0 .0 9% ,且测定结果与经典法非常一致 .The new method was advanced to determine iron of the iron ore.In the method,mercuric chloric solution of the classical method was replaced with perchloric acid solution to oxide the little excess stannous chloride and Fe 2+ was titrated with potassium dichromate standard solution.The method was been applied to determine iron of the iron ore with the relative standard deviations of 0.09%. The results compare with classical method.

关 键 词：高氯酸 无汞测铁法 重铬酸钾滴定 铁矿石 含量测定 氯化亚锡 

分 类 号：O614.811[理学—无机化学] O655.22[理学—化学]