• sharwan kumar devanda
• Dr. Kailash Chand
• Rakesh kumar verma

Weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy techniques were used to evaluate In a 1M phosphoric acid media, the adsorption and corrosion prevention capabilities of alcoholic Psidium guajava (guava) leaf extract on mild steel were investigated. According to the research, the inhibitory efficacy increases with increasing inhibitor concentration up to 800 ppm, then drops slightly at 1200 ppm. Both the Langmuir and Temkin adsorption isotherm equations are obeyed by the adsorption. Thermodynamic and kinetic parameters were calculated and discussed. It was revealed that the adsorption was of a full nature, with chemisorption dominating. According to potentiodynamic polarisation tests, the inhibitor functioned like a mixed-type inhibitor.

: EIS, Tafel, mild steel, corrosion, adsorption

"Green Corrosion Inhibitor for Mild Steel in Phosphoric Acid: Psidium Guajava Leaf Extract", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 3, page no.a141-a156, March-2022, Available :http://www.jetir.org/papers/JETIR2203018.pdf

"Green Corrosion Inhibitor for Mild Steel in Phosphoric Acid: Psidium Guajava Leaf Extract", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 3, page no. ppa141-a156, March-2022, Available at : http://www.jetir.org/papers/JETIR2203018.pdf