柠檬酸盐电解退铜液中游离柠檬酸根浓度的分析  

Determination of free citrate in citrate electrolytic copper stripping solution

作　　者：李青松[1] 喻献国[1] 李国希[1] 

机构地区：[1]湖南大学化学化工学院,湖南长沙410082

出　　处：《电镀与涂饰》2002年第1期38-40,共3页Electroplating & Finishing

摘　　要：采用络合滴定法测定柠檬酸盐电解退铜液中游离柠檬酸根的浓度。阐述了该方法的原理 ,探讨了返滴定金属离子及滴定pH值的选择。结果表明 ,采用Fe2 +作为返滴金属离子在pH值为 5.2 8～ 5.55之间测量误差小于 1 0 %Concentration of free citrate in citrate electrolytic copper stripping solution was determined by complexometric titration. Fundamental of this method was introduced, the selection of metal ions for back titration and measuring pH value was discussed. The results show that error of the determined value is below 10 percent provided that ferrous ions are used for back titration with measuring pH value between 5.28～5.55.

关 键 词：电解退铜液 柠檬酸盐 游离 柠檬酸根 浓度 

分 类 号：TQ153.19[化学工程—电化学工业]