European Journal of Material Sciences

EA Journals

Coconut

Corrosion Inhibitive Effects of Coconut (Cocos Nucifera Linn) Water For Mild Steel in Acidic Medium (Published)

The corrosion inhibitive effect of coconut water as an eco-friendly inhibitor for the corrosion control of mild steel in 0.5 Molar solution of H2SO4 acid have been investigated using the weight loss method which is considered more informative than other laboratory techniques. The studies were carried out using 30-110ml of the coconut water. The test coupons were totally immersed in the corroding medium containing various concentration of the inhibitor at the time intervals of 24-192 hours. The results obtained showed that the concentration of the inhibitor in the corrodent impacted differently on the test coupons. The corrosion rate was found to decrease while the inhibitor efficiency increases as the inhibitor concentration was increased. The plateau of maximum inhibition efficiency of 89.07% and 81.57% was obtained at the concentration of 90ml and 110ml for 24hours and 48hours immersion time respectively. The study showed that coconut water possesses inhibiting properties for reducing the corrosion of mild steel in the acidic medium.

Keywords: Coconut, Cocos Nucifera Linn, Corrosion, Inhibitor, Water

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