The Influence of Adding Bio Inhibitor Sarang Semut (Myrmecodia pendans) to Carbon Steel API 5L Grade B in Solution of HCl 1 M

Abstract:

Inhibitor is generally known as one of many alternatives to control corrosion rate. These days, there is the rapid development in which finding inhibitor made from natural ingredient that is really eco-friendly. This research use type of sarang semut, Myrmecodia Pendans (MP), as bio inhibitor with concentrate level for about 0-500 mg/L and also using the material of carbon steel API 5L Grade B, and HCl 1 M as such corrosive media. The affectivity of bio inhibitor is generally known through such calibration which is called as Weight Loss, Potentiodynamic Polarization Test, Electrochemical Impedance Spectroscopy Test, and X-Ray Diffraction Test. The test results show that when it is added with bio inhibitor, there is the decreasing of corrosion rate from 109.88 mpy to 39.294 mpy in concentration level of 500 mg/L. Inhibition mechanism occurred is that there is the formation of a thin layer on the metal surface. Meanwhile, the XRD results show that there are compounds of Fe, FeCl₃ and FeOCl in carbon steel API 5l Grade B.

• Periodical: Advanced Materials Research (Volume 1123)
• Pages: 187-191
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1123.187
• Online since: August 2015
• Authors: Atria Pradityana, Sulistijono Sulistijono, Abdullah Shahab
• Keywords: Acid Solution, API 5l grade b, Bio Inhibitor, Myrmecodia Pendans

References

[1] Jones, Denny A. Principles and Prevention of Corrosion. Toronto: Maxwell Macmillan Canada. (1991).

[2] A. Ostovari, et al, Corrosion inhibition of Mild Steel in 1 M HCl solution by Henna Extract: A comparative study of the inhibition by Henna and its constituents (Lawsone, Gallic Acid, Glucosed, and Tannic Acid), Corrosion Science. 51(9) (2009).

DOI: 10.1016/j.corsci.2009.05.024

[3] Roberge, P. R. Handbook of Corrosion Engineering: Mc Graw-Hill. New York. (2000).

[4] S.A. Umoren, U.M. Eduok, M.M. Solomon, A.P. Udoh, Corrosion inhibition by leaves and steams extracts of Sida Acuta for mild steel in 1M H2SO4 solutions investigated by chemical and spectroscopic techniques, Arabian Journal of Chemistry (in press) (2011).

DOI: 10.1016/j.arabjc.2011.03.008

[5] A. Pradityana, Sulistijono, A. Shahab, Application of myrmecodia pendans extract as a green corrosion inhibitor for mild steel in 3. 5% NaCl solution, Applied Mechanics and Materials. 493 (2014) 684–690.

DOI: 10.4028/www.scientific.net/amm.493.684