Inhibition of Acidic Corrosion of Low Carbon Steel by Novel Synthesized Benzothiazole Derivatives

Year 2011, Volume: 24 Issue: 4, 699 - 707, 16.12.2011

Evrim Hur , Gorkem Varol , Kamuran Gorgun Handan Can Sakarya

Abstract

Two novel benzothiazole derivatives (2-[(1,3-benzothiazol-2-ylamino)methyl]-1-naphthol (1) and 2-{[(6-methyl-1,3-benzothiazol-2-yl)amino]methyl}-1-naphthol) (2) have been synthesized. The protecting effect of these compounds on low carbon steel (LCS) in 0.1M hydrochloric acid (HCl) solutions as corrosion media was investigated using potentiodynamic polarization technique, and electrochemical impedance spectroscopy (EIS). The potentiodynamic polarization curves indicate that investigated benzothiazole derivatives were acting as anodic inhibitor. The inhibitive action of inhibitor molecules may be interpreted in view of their adsorption on the LCS surface. The adsorptions of benzothiazole derivatives on metal surface in 0.1M HCl solution were found to obey Temkin adsorption isotherm. Thermodynamic parameters of adsorption (Kads, DGads) of investigated inhibitors were calculated using Temkin adsorption isotherm.

 

Key Words: Benzothiazole, corrosion, steel, inhibitor.

 

Keywords

Benzothiazole, corrosion, steel, inhibitor.

References

• Sklarzka-Smialowska, S., Kaminsky, M., “Effect of various substituents in thiophene on the inhibitor efficiency”, Corr. Sci., 13 (1): 1-10 (1973).
• Aouniti, A., Hammouti, B., Kertit, M., Berhili, F., El-Kadiri, S., Ramdani, A., “Inhibition of the acid corrosion of iron with new pyrazole derivatives”, J. Chim. Phys., 93 (7-8): 1262-1280 (1996).
• Hammouti, B., Aouniti, A., Taleb, M., Brighli, M., Kertit, M., “L-methionine methyl-ester hydrochloride as a corrosion-inhibitor of iron in acid chloride solution”, Corrosion, 51 (6): 411-416 (1995).
• Epke, U., Ibok, U., Ita, B., Offiong, O., Ebenso, E., “Inhibitory-action of methyl and phenyl thiosemicarbazone derivatives on the corrosion of mild-steel in hydrochloric-acid”, Mat. Chem. Phys., 40 (2): 87-93 (1995).
• Vishwanatham, S., Haldar, N., “Furfuryl alcohol as corrosion inhibitor for N80 steel in hydrochloric acid”, Corr. Sci., 50 (11): 2999-3004 (2008).
• Quraishi, M.A., Sardar, R., Jamal, D., “Corrosion inhibition of mild steel in hydrochloric acid by some aromatic hydrazides”, Mater. Chem. Phy., 71 (3) 309-313 (2001).
• Ajmal, M., Mideen, A.S., Quraishi, M.A., “2- hydrazino-6-methyl-benzothiazole as an effective inhibitor for the corrosion of mild steel in acidic solutions”, Corros. Sci., 36 (1): 79-84 (1994).
• Samide, A., Bibicu, I., Rogalski, M.S., Preda, M., “Study of the corrosion inhibition of carbon-steel in dilute ammoniacal media using N-ciclohexil- benzothiazole-sulphenamida”, Corros. Sci., 47 (5):1119-1127 (2005).
• Popova, A., Christov, M., “Evaluation of impedance measurements on mild steel corrosion in acid media in the presence of heterocyclic compounds”, Corros. Sci., 48 (10): 3208-3221 (2006).
• Popova, A., “Temperature effect on mild steel corrosion in acid media in presence of azoles”, Corros. Sci., 49 (5): 2144-2158 (2007).
• El-Nabey, B.A., Khamis, E., Thompson, G.,
• Lawson, J., “Effect of temperature on the inhibition of the acid corrosion of steel by benzaldehyde thiosemicarbazone: Impedance measurements”, Surf. Coat. Technol., 28 (1): 83-91 (1986).
• Vicini, P., Amoretti, L., Ballabeni, V., Bacorelli E. and Chiavarini, M., “Synthesis and study of antiphlogistic, analgesic, antipyretic and spasmolytic activities of amidinobenzisothiazole derivatives”, Eur. J. Med. Chem., 30 (10): 809-814 (1995).
• Davion, Y., Guillaumet, G., Leger, J.M., Jarry, C., Lesur B. and Merour, J.Y., “Synthesis of substituted 1,4-benzoxazepin-3-one derivatives”, Heterocyles, 63 (5): 1093-1112 (2004).
• Rosliza, R., Wan Nik, W.B., “Improvement of corrosion resistance of AA6061 alloy by tapioca starch in seawater”, Curr. Appl. Phy., 10 (1): 221- 229 (2010).
• Gao, B., Zhang, X., Sheng, Y., “Studies on preparing and corrosion inhibition behaviour of quaternized polyethyleneimine for low carbon steel in sulfuric acid”, Mater. Chem. Phys., 108 (2-3): 375-381 (2008).
• Yurt, A., Balaban, A., Kandemir, S.Ü., Bereket, G., Erk, B., “Investigation on some Schiff bases as HCl corrosion inhibitors for carbon steel”, Mat. Chem. Phy., 85 (2-3): 420-426 (2004).
• Morad, M., Morvan, J., Pagetti, J., “Proceedings of the eighth european symposium on corrosion inhibitors (8SEIC)”, Sez V, Suppl. N. 10, Ann. Univ. Ferrara, NS, 159 (1995).
• Yurt, A., Ulutas, S., Dal, H., “Electrochemical and theoretical investigation on the corrosion of aluminium in acidic solution containing some Schiff bases”, Apply. Surf. Sci., 253 (2): 919-925 (2006).
• Hosseini, M., Mertens, S.F.L., Ghorbani, M.,
• Arshadi, M.R., “Asymmetrical Schiff bases as inhibitors of mild steel corrosion in sulphuric acid media”, Mater. Chem. Phys., 78 (3): 800-808 (2003).
• Fouda, A.S., Abdallah., M., Al-Ashrey, S.M., Abdel-Fattah, A.A., “Some crown ethers as inhibitors for corrosion of stainless steel type 430 in aqueous solutions”, Desalination, 250 (2): 538-543 (2010).
• Elachouri, M., Hajji, M.S., Salem, M., Kertit, S., Aride, J., Coudert, R., Essassi, E., “Some nonionic surfactants as inhibitors of the corrosion of iron in acid chloride solutions”, Corrosion, 52 (2): 103-108 (1996).
• Popova, A., Christov, M., Zwetanova, A., “Effect of the molecular structure on the inhibitor properties of azoles on mild steel corrosion in 1 M hydrochloric acid”, Corros. Sci., 49 (5): 2131-2143 (2006).
• Quraishi, M.A., Ahmad, S., Ansari, M.Q.,
• “Inhibition of steel corrosion by some new triazole derivatives in boiling hydrochloric acid”, Br. Corros. J., 32 (4): 297-300 (1997).