摘要
本文提出了采用Zn-EDTA络合铁(Ⅲ),在PH5.8六次甲基四胺存在下,铬天青S与铝显色来测定Al的方法。不经分离直接测定硅铁及硅钙合金中0.50～2.50％铝,获得了满意的结果。
The method of the photomertic determination of Al with the colour reaction of Al and CAS was provided. The Fe(Ⅲ) in the solution (PH0.8) can be complexed with Zn-EDTA in the presence of hexam-ethy lenetetramine.
The Al in Fe-Si and Si-Ca alloya can be determined directly without separation processing. The results are aaticfactory.
出处
《上海钢研》
1996年第3期31-33,共3页
Journal of Shanghai Iron and Steel Research
关键词
铬天青S
分光光度法
硅铁
硅钙
铝
CAS spectrophotometric ferrosilicon ailicon-calcium Aluminium
