Optimization Study of Eggshell Extract as Inhibitor of Mild Steel Corrosion in a 30 wt% NaCl Solution

oyewole, olamide and Adeoye, J. Busayo and lucas, mark and olugbemi, wura (2024) Optimization Study of Eggshell Extract as Inhibitor of Mild Steel Corrosion in a 30 wt% NaCl Solution. Optimization Study of Eggshell Extract as Inhibitor of Mild Steel Corrosion in a 30 wt% NaCl Solution, 42. pp. 123-136.

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Abstract

Corrosion is a major challenge faced in industries, which has to be addressed by using inhibitors. The aim of this study was to investigate ESE as CI of MS in a 30 wt% NaCl solution. ESE was subjected to Pc analysis, to identify the presence of active ingredients that would create a good CI. CI of ESE at different C was investigated using WL, PDP, SEM, FTIR and EDXS techniques, to characterize MS samples. The best process level from the experimental design was observed at T of 24.4 ºC, IT of 6 days and ESE C of 0.4 g/L, with IE(%) of 95.5%. The presence of metabolites in ESE was confirmed by Pc analysis, which suggested the extract was a good CI. Results from PDP and WL techniques were in good agreement. SEM, FTIR and EDS data revealed that the optimal procedure level produced a stronger protective film on the MS surface. It was concluded that ESE acted as a good and environmentally friendly CI.

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