Investigation of the inhibitive Properties of Irvingia gabonensisExtractan for the Corrosion of Aluminum Alloy (aa4007) in 1 m HCl
Keywords:
Aluminium, electrochemical degradation, retardation, plant extract, Irvingiagabonensis leafAbstract
Ajike Eziyi Emea* Lebe Agwu Nnanna, Orji Obinwa, Victor Emeka Ihuomah, Elizabeth Chinyere Nwaokorongwu
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.
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