Assessment of Vitis labrusca Extract as a Corrosion Inhibitor for Mild Steel in Acidic Media

Abstract

This study explores the corrosion inhibition properties of Vitis labrusca (Concord grape) extract as a 
sustainable alternative. Weight loss measurements were used to assess the corrosion rates of mild steel 
in a 1M hydrochloric acid solution with varying concentrations of the plant extract. The results reveal a 
significant reduction in corrosion rates, with inhibition efficiency reaching 70.59% at the highest 
concentration of 0.8 ppm. The adsorption of bioactive compounds onto the metal surface and the 
formation of a protective film are identified as key mechanisms responsible for the corrosion inhibition. 
This study highlights the efficacy of Vitis labrusca extract as an eco-friendly corrosion inhibitor, offering 
a promising solution for possible industrial applications. Further research is recommended to optimize 
its practical use and evaluate its long-term effectiveness under varied environmental conditions.