ANTI-CORROSION STUDIES ON ETHANOLIC EXTRACT OF HIBISCUS ROSA SINENSIS AND AZADIRACHITA INDICA LEAVES

The present investigation was carried out about the corrosion inhibition and adsorption behavior of Neem and Hibiscus, as a green inhibitor of Zinc corrosion in acidic mediated corrosion causing soil microbes by using weight loss and thermodynamic studies. It was even analyzed both quantitatively and qualitatively biochemical substances present in Neem and Hibiscus leaves of ethanol extract which act as anticorrosive agent of metallic and non-metallic substances in acidified soil. Ethanolic extract of Neem and Hibiscus leaves extract showed the strong antimicrobial activity against soil microbes such as S.aureus, Streptococcus, B. subitilis, Lactobacillus, Proteus, Corynebacterium, Pseudomonas, A.niger, Mucor and Desulpho Vibro sp. Langmuir and Freundlich, Temkin and Florry Huggins models are employed to analysis adsorption occurred in the experimental data of adsorption isotherms. The Freundlich, Langmuir and Temkin models are employed to analysis adsorption occurred in the experiment.