Mild steel is used commonlyas metal in many industrial applications and acid solutions are usedin various industrial processes like acid cleaning, descaling, pickling. In the present study, an attempt was made to study the anticorrosion behaviour of the aqueous extract of Piper betel leaves in hydrochloric acid medium using weight loss method. Corrosion rates and inhibitor efficiencies were determined for the effectiveness of the inhibitor. The results showed that increase of the inhibition efficiency with increasing the concentration of plant extract. The results confirmed that Piper betel leaf extract could serve as aneffective green corrosion inhibitor for mild steel in acid medium.
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