Modelling and Optimization Mechanism of Bougainvillea glabra Flower Extracton Zinc in 2 M Aqueous HCl using Response Surface Methodology

L. N. Emembolu, O.D. Onukwuli and V.N. Okafor
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L. N. Emembolu: Department of Chemical Engineering, Nnamdi Azikiwe University, Awka, Nigeria
O.D. Onukwuli: Department of Chemical Engineering, Nnamdi Azikiwe University, Awka, Nigeria
V.N. Okafor: Department of Chemical Engineering, Nnamdi Azikiwe University, Awka, Nigeria

International Journal of Research and Scientific Innovation, 2020, vol. 7, issue 7, 38-44

Abstract: Modeling and Optimization mechanism of flower extract of Bougainvillea glabra (GBF) on inhibition of zinc corrosion in 2 M aqueous HCL was studied using weight loss and Response surface methodology (RSM). The effects of temperature (303 -343K), time (2–10 hr), acid concentration (1.0 – 3.0 mols), and inhibitor concentration (0.2 – 1.0g/l) on inhibition efficiency was carried out using Response Surface Methodology. The rate of corrosion of zinc in aqueous acid solution was successfully hindered by BFE. The predicted values was validated by applying the optimum settings of 0.025g/l inhibitor concentration, time of 6.250 hr and temperature of 313K. The predicted model was quiet in agreement with the obtained experimental data of 87.23%. The activities of BFE as readily available, low cost and as good corrosioe n inhibitor of zinc in acid media was shown is this study.

Date: 2020
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