Lime, a vibrant fruit of citrus family is known for its antioxidant as well as anti-microbial properties.
The constituents of lime juice include organic acids, polyphenols, soluble sugars, vitamins, minerals
and amino acids. These details prompted to experiment lime juice as corrosion inhibitor for mild steel
in 1 M HCl. The weight loss studies showed that the corrosion inhibition efficiency increased with
increase in concentration of the lime juice as well as increase of temperature. The inhibition efficiency
reached a maximum of 96% for an immersion period of 24 h. The best fit for the adsorption process
obeyed Langmuir isotherm. The negative value of ΔGads showed the spontaneity of the corrosion
inhibition process. The corrosion inhibition efficiency of the acidified lime juice was further validated
by electrochemical studies namely AC impedance studies and potentiodynamic polarization studies.
The surface morphology study was performed used optical profilometer.