3-Mercaptopropionic Acid as Corrosion Inhibitor for Carbon Steel in CO2 Aerated 1% NaCl Solution with Buffer Control-pH

Full Text
Yayan Sunarya


In this research, 3-Mercaptopropionic acid (MPA) as corrosion inhibitor of carbon steel in CO2 aerated 1% NaCl solution with buffer pH adjustment has been studied by means of electrochemical impedance (EIS) and polarization (Tafel plot). MPA was found to be an effective carbon steel inhibitor. Percentage inhibition efficiency (IE %) calculated by both Tafel plot and EIS, ranged from 85% to 90%. MPA was found to affect the cathodic processes and act as cathodic-type inhibitors. Mechanism of inhibit corrosion by adsorption mechanism leads to the formation of a protective chemisorbed film on the metal surface film which suppresses the dissolution reaction and the hydrogen evolution reaction is activation controlled.


3-mercaptopropionic acid, corrosion inhibitor, carbon steel, Tafel, EIS


S.N. Raicheva, B.V. Aleksiev, E.I. Sokolova, The Efeect of The Chemical Structure of Some Nitrogen- and Sulphur-Containing Organic Compounds on Their Corrosion Inhibiting Action, Corr. Sci., 34 (1993), 343.

Şahin, M. Dan Bilgiç, S., The inhibition effects of some heterocyclic nitrogenous compounds on the corrosion of the steel in CO2-saturated NaCl solutions, J. Anti-Corr. Method and Mater., 50 (2003), 34.

Manahan, S.E. (2000), Environmental Chemistry, Lewis Publishers, New York, p. 68.

Moretti, G., Guidi, F., Grion, G., Tryptamine as a green iron corrosion inhibitor in 0.5 M deaerated sulphuric acid, Corr. Sci., 46 (2004) 387.

N.A. Al-Mobarak, K.F. Khaled, Mohamed N.H. Hamed, K.M. Abdel-Azim, N.S. Abdelshafi, Corrosion inhibition of copper in chloride media by 2-mercapto-4-(p-methoxyphenyl)-6-oxo-1,6-dihydropyrimidine-5-carbonitrile: Electrochemical and theoretical study, Arab. J. of Chem. (2010) 3, 233–242.

Wang, H.L., Liu, R.B., Xin, J., Inhibiting effects of some mercapto-triazole derivatives on the corrosion of mild steel in 1.0 M HCl medium, Corr. Sci., 46 (2004) 2455.

Mihit, M., Laarej, K., Abou El Makarim, Bazzi L., Salghi R., Hammouti B., Study of the inhibition of the corrosion of copper and zinc in HNO3 solution by electrochemical technique and quantum chemical calculations, Arab. J.l of Chem. (2010) 3, 55–60.

Bentiss, F., Traisnel, M., Vezin, H., Hildebrand, H.F., Lagrenee, M., 2,5-Bis(4-dimethylamino-phenyl)-1,3,4- oxadiazole and 2,5-bis(4-dimethylaminophenyl)- 1,3,4-thiadiazole as corrosion inhibitors for mild steel in acidic media, Corr. Sci., 46 (2004) 2781.

Bentiss, F; Traisnel, M.; Vezin, H.; Lagrenèe, M., Linear Resistance Model of the Inhibition Mechanism of Steel in HCl by Triazole and Oxadiazole Derivatives: Structure - Activity Correlations, Corr. Sci., 45 (2003), 371.

Fu-Guo, LIU, Min, DU., Jing, Z., and Meng, Inhibition Mechanism of Imidazoline Derivative Inhibitor for Q235 Steel in Saltwater Saturated with CO2.” Acta Physico-Chimica Sinica, 24 (2008), 138-142.

DOI: http://dx.doi.org/10.20884/1.jm.2018.13.2.340

Metric logoArticle Metrics

This article has been viewed: 51 (times)
PDF file viewed / downloaded: 33 (times)


  • There are currently no refbacks.

Logo Unsoed


Jurnal Ilmiah Kimia
Department of Chemistry, Faculty of Mathematics and Natural Sciences,
Universitas Jenderal Soedirman, Purwokerto, Indonesia

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.