Chemical facets of environment-friendly corrosion impediment of low-carbon steel in aqueous solutions of inorganic mineral acid

Abstract

Response of low – carbon steel in hydrochloric acid was studied for various parameters with the use of leaves of white pigweed as inhibitor. The inorganic mineral acid was applied in paste state and conventional weight loss techniques were employed for the study of various chemical aspects. The results reveal that low – carbon steel corrodes extensively in acid in the absence of inhibitor and is protected in the presence of inhibitor at different concentrations. Also, different time intervals and various temperatures for different concentrations of acids in paste form were considered for best output. For comparison, data of rust dissolution in liquid state has also been furnished. The inhibitor showed good potential in protection of low – carbon steel.