The inhibitive effect of tannin in Psidium guajava leaves towards 304SS corrosion in concentrated HCl

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Andita N. F. Ganda, Andoko, P.H. Setyarini, Femiana Gapsari

2018 MATEC Web of Conferences Vol. 204 Conference paper Cited by 7

Abstract

Tannin isolated from Psidium guaJava leaves are developed to enhance the corrosion protection of austenitic stainless steel. It is used as a green inhibitor, extracted from Psidium guaJava which grow in East Java, Indonesia. In the present work, the corrosion inhibition properties of the tannin inhibitors were investigated in 3M HCl by polarization potentiodynamic measurements. The result reveals that tannin 1g/L could enhance the inhibition efficiency up to 91.81%. © The Authors, published by EDP Sciences, 2018.

Affiliations

Department of Mechanical Engineering, State University of Surabaya, Surabaya, 60293, Indonesia; Department of Mechanical Engineering, State University of Malang, Malang, 65145, Indonesia; Department of Mechanical Engineering, Faculty of Engineering, Brawijaya University, Malang, 65145, Indonesia