| Issue |
MATEC Web Conf.
Volume 204, 2018
International Mechanical and Industrial Engineering Conference 2018 (IMIEC 2018)
|
|
|---|---|---|
| Article Number | 05018 | |
| Number of page(s) | 6 | |
| Section | Material | |
| DOI | https://doi.org/10.1051/matecconf/201820405018 | |
| Published online | 21 September 2018 | |
The inhibitive effect of tannin in Psidium guajava leaves towards 304SS corrosion in concentrated HCl
1
Department of Mechanical Engineering, State University of Surabaya, 60293 Surabaya, Indonesia
2
Department of Mechanical Engineering, State University of Malang, 65145 Malang, Indonesia
3
Department of Mechanical Engineering, Faculty of Engineering, Brawijaya University, 65145 Malang, Indonesia
*
Corresponding author: femianagapsari@gmail.com
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
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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