Determination of Copper Content in Pure Copper by Constant Current Electrolysis Method and BCO Photometric Method
XUE Minghao
WANG Junxiu
LI Longxia
ZHANG Xiaoyan
WEI Xinhui
Abstract：After the sample was dissolved by sulfuric-nitric mixed acid, in the acidic solution medium containing sulfuric acid and nitric acid, an appropriate voltage between the two platinum electrodes dipped into solution was adjusted to carry out electrolysis, and at the end of electrolysis, the copper deposited on platinum cathode was cleaned, dried and weighed, then the mass percent of copper was calculated. The residual copper in electrolyte could be determined by BCO photometric method and combined into the main mass. The analysis error was completely within the range of GB(national standard) analysis error, thus the determination accuracy of copper content in pure copper was improved.
Keywords：pure copperconstant current electrolysis methodBCO photometric methodcopper
Publication Date：2015-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：2( 38-39 )