Abstract

Corrosion inhibition of copper alloy in 0 3 M HNO and KOH at room temperature using Mangiferaindica leaf extract in different concentrations was studied A Gravimetric technique was employed The result obtained showed that Mangiferaindica leaf extract is a good inhibitor for 0 3 M HNO3 and KOH solution The weight loss corrosion rate and inhibition efficiency were deduced The inhibition efficiency showed a good percentage result with the optimum value of 85 60 and 90 91 in HNO3 and KOH respectively Generally it was observed that the rate of inhibition increased with the concentration of the inhibitor decreased in corrosion rate