Dataset associated with the paper "Evaluation of brass electrodeposition at RDE from cyanide-free bath using EDTA as a complexing agent"

This dataset contains experimental results related to cyanide-free brass electrodeposition using EDTA as a complexing agent and the subsequent treatment of the generated effluent by electrodialysis. Voltammetric data obtained with a rotating disc electrode are included to evaluate the influence of rotation speed, applied potential, charge density, and bath composition on copper-zinc–EDTA electrodeposition on steel. The dataset allows the determination of mass transport parameters, including the diffusion coefficient of Cu–EDTA, and the assessment of charge- and mass-transfer control mechanisms. The data are suitable for studies on cyanide-free brass electroplating, mass transport in complexed metal systems, and integrated electrochemical treatment and recovery processes. The data used to generate the figures are provided in the corresponding Excel worksheets. Each dataset is specified below. Figure 1a: Cathodic peaks of the cyclic voltammetric curves constructed for solutions with 0.15M EDTA, 3M NaOH and 0.06M Cu2+. Figure 1b: Cathodic peaks of the cyclic voltammetric curves constructed for solutions with 0.15M EDTA, 3M NaOH and 0.14M Zn2+. Figure 1c: Cathodic peaks of the cyclic voltammetric curves constructed for the original bath (0.15M EDTA, 3M NaOH, 0.06M Cu2+ and 0.14M Zn2+). Figure 1d: Cyclic curves without agitation for the same solutions of Figures 1 (a), (b) and (c). Figure 2: Koutecky-Levich plots obtained for the solution with copper, EDTA and NaOH. Figure 3a: Cyclic voltammetric curves of solutions with 0.15 M EDTA, 3 M NaOH and (a) Cu2+ under 500 rpm. Figure 3b: Cyclic voltammetric curves of solutions with 0.15 M EDTA, 3 M NaOH and (a) Zn2+ under 500 rpm. Figure 3c: Cyclic voltammetric curves of the bath with 25% (v/v) of the solution from electrodialysis without agitation. Figure 7: Potential transients obtained for the galvanostatic electrodepositions.