Research Article

Baphia nitida Leaves Extract as a Green Corrosion Inhibitor for the Corrosion of Mild Steel in Acidic Media

Table 1

Corrosion rates of mild steel in 1 M H2SO4 and 2 M HCl in absence and presence of BN extract obtained from gasometric method.

System Corrosion rate
(×10−3 H2 gas vol. mL s−1)
30°C60°C

1 M H2SO4
 Corrodent alone9.2027.65
 Corrodent + 20 mg/L inhibitor3.5218.49
 Corrodent + 100 mg/L inhibitor2.1715.83
2 M HCl
 Corrodent alone16.3456.96
 Corrodent + 20 mg/L inhibitor3.2824.68
 Corrodent + 100 mg/L inhibitor1.1419.25