分光光度法测定特种铁合金中的微量锰  

DETERMINATION OF TRACE MANGANESE IN SPECIAL FERROALLOYS BY SPECTROPHOTOMETRY

作　　者：邱然[1] 邱林友[1] 

机构地区：[1]昆明理工大学测试中心,昆明中国650093

出　　处：《铁合金》2010年第6期39-41,共3页Ferro-alloys

摘　　要：在pH=3的NH_4HF_2介质中,利用微量Mn^(2+)催化MnO_4^-与甲基橙反应,建立分光光度法测定特种铁合金中的微量锰,该方法快速准确,是测定相应铁合金中微量锰元素的较好测定方法。A method has been developed to determine trace manganese in some ferroalloys by spectophotometry.It has been based on that methyl orange is discolored by MnO_4- with trace Mn（2＋）＊ catalyzing in a medium of NH_4HF_2 of pH = 3.The method is accurate and quick and it is a better determination method to determinate trace manganese in special ferroalloys.

关 键 词：甲基橙 分光光度 锰 铁合金 

分 类 号：TG115.335[金属学及工艺—物理冶金]