Inhibitive Potentials of Bitter Kola Stem (BKS) on Mild Steel in Acidic Media
This paper deals with the inhibitive potentials of bitter kola stem extract (BKS) on the deterioration of mild steel in 1 M HCl and 1 M H2SO4 using gravimetric method. Coupons of dimension 5.0 cm x 4.0 cm were immersed in test solutions of uninhibited acid and also in those containing various amount of BKS (10, 25 and 40 %v/v) at 30 oC and 60 oC respectively. The results showed that the extract addition reduced mild steel corrosion in the acidic media. The inhibitive efficiency of 92.07 % was attained at 40 %v/v in 1 M H2SO4 at 30 oC temperature, while the efficiency of 89.19 % was realized at the same concentration in 1 M HCl at 60 oC temperature. Hence, BKS can be considered as a good and safe inhibitor against mild steel corrosion in both acidic media.
- Staff Articles6452