Thermodynamic and Kinetic Study of Zinc bis-(Dipalmithyl Dithiophosphate) Activity as Anti-Corrosion Additive-Fatty Acid Based Through Potentiodynamic Polarization Technique

https://doi.org/10.22146/ijc.21166

Komar Sutriah(1*), Zainal Alim Mas’ud(2), Mohammad Khotib(3), Denar Zuliandanu(4)

(1) Department of Chemistry, Faculty of Mathematic and Natural Sciences, Bogor Agricultural University, Darmaga Campus, Kimia Building, Tanjung Street, Bogor 16680 Integrated Laboratory, Bogor Agricultural University, Baranangsiang Campus, Pajajaran Street, Bogor 16144
(2) Department of Chemistry, Faculty of Mathematic and Natural Sciences, Bogor Agricultural University, Darmaga Campus, Kimia Building, Tanjung Street, Bogor 16680 Integrated Laboratory, Bogor Agricultural University, Baranangsiang Campus, Pajajaran Street, Bogor 16144
(3) Department of Chemistry, Faculty of Mathematic and Natural Sciences, Bogor Agricultural University, Darmaga Campus, Kimia Building, Tanjung Street, Bogor 16680 Integrated Laboratory, Bogor Agricultural University, Baranangsiang Campus, Pajajaran Street, Bogor 16144
(4) Integrated Laboratory, Bogor Agricultural University, Baranangsiang Campus, Pajajaran Street, Bogor 16144
(*) Corresponding Author

Abstract


Zinc bis-(dipalmithyl dithiophosphate) (ZDTP16) is one product variant of zinc dialkyl dithiophosphate (ZDTP)-fatty acid based having function as corrosion inhibitor. By using 3% of effective dose for the application, its effectiveness of ZDTP16 corrosion inhibition will achieve 97% and it will be able to decrease Cu metal corrosion rate from 0.152 to 0.004 mm per year. Thermodynamic and kinetic parameter verification indicates the decreasing of spontaneity and corrosion rate by existence of ZDTP16 inhibitor. Gibbs free energy transition corrosion of Cu metal in electrolyte medium is measured in corrosion simulator increased from +85.22 to +91.77 kJ mol-1, while its activation energy increased from +16.66 to +33.68 kJ mol-1. Morphology observation of Cu metal substrate surface using SEM-EDX shows that the adsorption of ZDTP16 at substrate surface is able to protect surface from corrosion indicated by the existence of Zn, P, S, and C constituents representing composer atoms of ZDTP16, and the decreasing of Cl- corrosive constituent at substrate surface.

Keywords


ZDTP16; adsorption; corrosion inhibitor; fatty acid

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References

[1] Revie, R.W., and Uhlig H.H., 2008, Corrosion and Corrosion Control, 4th Ed., John Wiley & Son, Inc., Hoboken-New Jersey (US).

[2] Rafiquee, M.Z.A., Saxena, N., Khan, S., and Quraishi, M.A., 2008, Mater. Chem. Phys., 107 (2-3), 528–533.

[3] Sangvanich, P., Tungcharoen, J., and Petsom, A., 2008, Acta Chim. Slov., 55, 582–587.

[4] Ameer, M., Ghoneim, A., and Fekry, A., 2012. Chem. Mater. Res., 2 (1), 41–55.

[5] Becchi, M., Perret, F., Carraze, B., Beziau, J.F., and Michael, J.P., 2001, J. Chromatogr. A, 905 (1-2), 207–222.

[6] Lotfus, S., 2002, Zinc Dialkildithiophosphate Category, New York (US): The American Chemistry Council.

[7] USDA, 2011 (Circular Series September 2011), Foreign Agricultural Service, World Agricultural Production, Copra, Palm Kernel, and Palm Oil Production.

[8] Sulistyanto, A.I., and Akyuwen, R., 2011, IPEDR, 4, 281–289.

[9] ASTM G1-72, Recommended Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens.

[10] ASTM D130-10, Standard Test Method for Corrosiveness to Copper from Petroleum Products by Copper Strip Test.

[11] ASTM G59–97, 2014, Standard Test Method for Conducting Potentiodynamic Polarization Resistance Measurements.

[12] Morad, M.S., and El-Dean, A.M.K., 2006, Corros. Sci., 48 (11), 3398–3412.

[13] Dinoiu, V., Florescu, D., and Bogatu, L., 2007, Rev. Chim., 58 (2), 183–185.

[14] Perez, N., 2004, Electrochemistry and Corrosion Science. 2nd Ed., Kluwer Academic Publishers, New York (US).

[15] Vyas, S.P., 2013, J. Chem. Pharm. Res., 5 (2), 270–278.

[16] Harkut, N., and Nagar, P.N., 2007, Bioinorg. Chem. Appl., 2007, 1–6.



DOI: https://doi.org/10.22146/ijc.21166

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