The Effect of Lupicof Drug on Electrochemical Behaviour of Mild Steel in Sulphuric Acid medium

Abstract

Abstract A huge attention has been paid for the many long years to solve the corrosion related damages and destruction of metallic and alloy materials. Many failures of demolition of materials due to the corrosion showed that worldwide, the various forms of corrosion are primarily substantial. This paper presents, corrosion inhibitive study of an expired Lupicof (Lu) drug on the mild steel in 1M sulphuric acid medium by gravimetric (weight loss), electrochemical methods and scanning electron microscopy (SEM) studies with EDX and FTIR and quantum studies will be discussed. The temperature studies reveals that The adsorption isotherm typically describes the interaction between the inhibitors and the surface of mild steel drug as inhibitor obeys Langmuir’s and Temkin adsorption isotherms. Polarization studies indicate this inhibitor functions as a mixed form of inhibition. The above-mentioned studies support that, the Lupicof inhibitor acts as a good inhibitor in the given acidic medium which has been correlated with the quantum chemical studies also to prevent corrosion failures cases.