Investigation of the inhibitive Properties of Irvingia gabonensisExtractan for the Corrosion of Aluminum Alloy (aa4007) in 1 m HCl

Abstract

Communication in Physical Sciences, 2023, 9(3):193-202 Ajike Eziyi Emea* Lebe Agwu Nnanna, Orji Obinwa, Victor Emeka Ihuomah, Elizabeth Chinyere Nwaokorongwu Received: 13 March 2023/Accepted 29 May 2023 The corrosion efficiency of Irvingiagabonensis leaf extract for aluminium in 1MHCl media was investigated by gravimetric methods. The phytochemical analysis of the plant extract indicated the presence of saponin, alkaloid, flavonoid, and tannin which were considered effective against the corrosion of metals due to the commended chemical structures of the identified phytochemicals.  Observations of results from weight loss experiments showed a progressive enhancement of the inhibitory efficiency with extract concentration and decreasing temperature. The maximum observed inhibition efficiency of the plant extract was  98% under HCl concentration of 1.0 M and a reaction temperature of 318 K