氧化铁粉中氯离子含量的测定  

Determination of Chlorine Ion Content in Ferric Oxide Powder

作　　者：刘琰[1] 程坚平[1] 李海栋[1] 

机构地区：[1]马鞍山钢铁股份有限公司,243000

出　　处：《金属制品》2005年第4期26-28,共3页Metal Products

摘　　要：用硝酸银滴定氧化铁粉溶液时,氯离子的浓度会发生突变,指示电极的电位发生相应突跃,以此确定滴定终点,可以准确测定氧化铁粉中氯离子的含量。通过对不同浸取时间、温度等实验,找出最佳实验条件,进行检测下限、回收率等实验,证实此方法快速、准确。The concentration of chlorine ion can apper sudden change and the potential of indicative electrode can occur corresponding spring as titrating ferric oxide powder solution with AgNO3 solution, which is used as confirming titration terminal to determine chorine ion content in ferric oxide powder exactly. The optimum experiment conditions are found by testing of leaching time and temperature and so on,and do determining low limit and reclaiming rate experiment and etc. results confirm the method is fast and exact.

关 键 词：电位滴定 氧化铁粉 氯离子测定 

分 类 号：TG153.13[金属学及工艺—热处理]