摘要
采用电解重量法测定砷铜合金中的铜，可在砷铜合金电解液中加入适量的过氧化氢阻止砷（HI）在阴极上沉积．该法回收率为99．95％～102．2％，适合于砷铜合金中铜的精确测定．
In this paper, copper in copper-arsenic alloy was determined by the electrolytic gravimetric method. The experimental results show that hydrogen peroxide added to the electrolyte could prevent As（ Ⅲ） from electrodepositing in cathode, thus copper between 99.95% and 102.2% being retrieved. The method is suitable for precise determination of copper in copper-arsenic alloy.
出处
《材料研究与应用》
CAS
2009年第2期150-152,共3页
Materials Research and Application
关键词
砷铜合金
过氧化氢
电解重量法
铜
copper-arsenic alloy
hydrogen peroxide
electrolytic gravimetric method
copper
