Total Concentration of Main Components in Solutions for Metal Electroplating as a Criterion for Classifying and Choosing Resource-Saving Compositions of Solutions

摘要

A comparative analysis is performed of the variations in the total concentration of the main components (∑ic_i), in the solutions proposed and used in different years for electroplating individual metals (Cr, Cu, Ni, Zn, Sn, Cd, Pb, and Fe). A quantitative concentration criterion is determined for classifying solutions into resource-saving (∑ic_i ≤ 2.32 mol-equiv/L) and resource-intensive (∑ic_i≥ 2.78 mol-equiv/L) compositions. In addition to scientific interest, this material can be useful for developing studies aimed at reducing the negative environmental impact of electroplating shops or sections.