Abstract
Mild steel has excellent applicability to structures that provide many benefits to man. On the other hand, exposure to chemical reactions including corrosion leads to their degradation. Thus, minimizing the effect of such phenomenon (corrosion) is needed (since it is a natural process). This study aimed to determine the corrosion inhibition of Diospyros blancoi (velvet apple) acid leaf extract on mild steel in an acidic medium. Further, it determines the concentration at which D. blancoi acid leaf extract (DbAE) performs best in corrosion inhibition parameters. Acidic environment immersion was done on mild steel sheets on treatments with different DbAE concentrations (5%, 10% and 15%). Weight loss was the factor determined to determine the inhibition efficiency of the DbAE concentrations and the corrosion rate of the mild steels. Results showed that the inhibition efficiency is highest and the corrosion rate of mild steel is lowest at 15% DbAE concentration. It is recommended that sophisticated facility/ equipment be used to determine the effect of DbAE on the physical and chemical components of mild steel. Also, the production of D. blancoi must be done since the potential anticorrosion impact of this plant species has been determined.
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