Dataset for the article Effect of sulfide in a 0.2 M NaCl solution on copper and pre-oxidized copper in oxic conditions

This dataset supports the tables and figures in the article Effect of sulfide in a 0.2 M NaCl solution on copper and pre-oxidized copper in oxic conditions Effect of sulfide in a 0.2 M NaCl solution on copper and pre-oxidized copper in oxic conditions (https://doi.org/10.1016/j.surfin.2025.107387). The data set contains experimental data for copper and pre-oxidized copper samples exposed to chloride solution (0.2 M Cl–) with different sulfide concentrations (5·10–6 M SH– and 1·10–4 M SH–) at room temperature (22 ± 2 °C) and elevated temperature (60 °C). Corrosion potential was monitored over a period of 24 hours. After 24 h immersion, electrochemical impedance spectroscopy was performed to observe the properties of the surface film formed on the copper and the pre-oxidized copper. The dataset also includes images of pre-oxidized samples after 24 hours immersion in different solutions, original Raman spectra and Raman images, XPS data and images data from the scanning electron microscope and images of cross-section of samples. The dataset was also used for the model of corroding system (Figure 13)