电位滴定法测定镀黑镍溶液中硫氰酸铵  

Determination of Ammonium Thiocyanate in Black Nickel Plating Solution by Potentiometric Titration Method

作　　者：马春华[1] 

机构地区：[1]武夷学院绿色化工重点实验室化学与环境工程系,福建武夷山354300

出　　处：《电镀与精饰》2008年第12期41-43,共3页Plating & Finishing

基　　金：福建省教育厅资助项目(JB07185);武夷学院资助项目(XQL07005)

摘　　要：以硝酸银标准溶液作为滴定剂,用电位滴定法测定镀黑镍溶液中的硫氰酸铵的质量浓度,本方法回收率为97.81%～100.54%,相对标准偏差为0.14%,该方法自动控制滴定过程,判断测定终点,结果准确、重现性好。A potentiometric titration method to determine ammonium thocyanate in black nickel plating solution was introduced. Silver nitrate was used as the titrant. The recovery ratio was 97. 81% 100.54%, the RSD was 0.14%. The titration process and end point judgement could be controlled automatically, and the results were accurate.

关 键 词：黑镍 NH4CNS 电位滴定 

分 类 号：TG115.313[金属学及工艺—物理冶金]