Contribution to the corrosion inhibition of carbon steel by 5-(2-ethoxybenzylidene) 1,3-dimethylbarbituric acid in HCl solution: experimental and theoretical study
DOI:
https://doi.org/10.62638/ZasMat1269Abstract
The inhibiting impact of ecofriendly 5-(2-ethoxybenzylidene) 1,3-dimethylbarbituric acid (5-EBMB) in 1 M HCl on the corrosion of C-steel has been examined via weight loss (WL) method, potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), electrochemical frequency modulation (EFM) techniques”. The obtained results demonstrate that the studied chemical is good 5-EBMB and that, in both PDP and EIS methods, its inhibition efficiency (%IE) increases with increasing concentration, reaching 82.5 at 21x10-6 M. Conversely, when the temperature rose, the percentage of IE reduced. “The adsorption of the investigated derivative on the surface of C-steel follows Langmuir isotherm. The adsorption process of the investigated compound is spontaneous and considered as chemisorption type”. PDP curves revealed that the studied derivative is mixed-type inhibitor. Furthermore, the EIS results verified that the compound under investigation had adsorbed on the C-steel surface by raising the charge transfer resistance (Rct) to 139.7 ohm cm2 and decreasing the double layer (Cdl) capacitance from 102 to 69 µF cm-2. The inhibitor adsorption on the C-steel surface was confirmed by surface examination using atomic force microscopy (AFM), energy dispersive X-ray (EDX), and scanning electron microscopy (SEM). Additionally, quantum chemistry and molecular dynamic simulation were used to extensively examine the mechanism of 5-EBMB's corrosion inhibition. All tested methods gave good agreement.
Keywords:
corrosion inhibition, HCl, C-steel, arylidene barbituric acid derivative, langmuir isothermReferences
H.B. Fan, C.-Y. Fu, H.-L. Wang, X.-P. Guo, J.-S. Zheng (2002) Inhibition of corrosion of mild steel by sodium n, n-diethyl dithiocarbamate in hydrochloric acid solution, Br. Corros. J., 37, 122-125. https://doi.org/10.1179/000705902225004383
Y.K. Agrawal, J.D. Talati, M.D. Shah, M.N. Desai, N.K. Shah (2004) Schiff bases of ethylenediamine as corrosion inhibitors of zinc in sulphuric acid, Corros. Sci., 46, 633-651. https://doi.org/10.1016/S0010-938X(03)00174-4
G. Trabanelli (1991) Whitney award lecture: inhibitors-an old remedy for a new challenge, Corrosion, 47, 410-419. https://doi.org/10.5006/1.3585271
D.D.N. Singh, A.K. Dey (1993) Synergistic effects of inorganic and organic cations on inhibitive performance of propargyl alcohol on steel dissolution in boiling hydrochloric acid solution, Corrosion, 49, 594-600. https://doi.org/10.5006/1.3316090
G. Banerjee, S.N. Malhotra (1992) Contribution to adsorption of aromatic amines on mild steel surface from HCl solutions by impedance, UV, and Raman spectroscopy, Corrosion, 48, 10-15. https://doi.org/10.5006/1.3315912
S.T. Arab, E.A. Noor (1993) Inhibition of acid corrosion of steel by some S-alkylisothiouronium iodides, Corrosion, 49, 122-129. https://doi.org/10.5006/1.3299206
A. Frignani, V. Grassi, F. Zanotto, F. Zucchi (2012) Inhibition of AZ31 Mg alloy corrosion by anionic surfactants, Corros. Sci., 63, 29-39. https://doi.org/10.1016/j.corsci.2012.05.012
R.F. V Villamil, P. Corio, S.M.L. Agostinho, J.C. Rubim (1999) Effect of sodium dodecylsulfate on copper corrosion in sulfuric acid media in the absence and presence of benzotriazole, J. Electroanal. Chem., 472, 112-119. https://doi.org/10.1016/S0022-0728(99)00267-3
T. Zhao, G. Mu (1999) The adsorption and corrosion inhibition of anion surfactants on aluminium surface in hydrochloric acid, Corros. Sci., 41, 1937-1944. https://doi.org/10.1016/S0010-938X(99)00029-3
S.S. Abd El Rehim, H.H. Hassan, M.A. Amin (2001) Corrosion inhibition of aluminum by 1, 1 (lauryl amido) propyl ammonium chloride in HCl solution, Mater. Chem. Phys., 70, 64-72. https://doi.org/10.1016/S0254-0584(00)00468-5
I.A. Raspini (1993) Influence of sodium salts of organic acids as additives on localized corrosion of aluminum and its alloys, Corrosion, 49, 821-828. https://doi.org/10.5006/1.3316005
N. Hajjaji, I. Rico, A. Srhiri, A. Lattes, M. Soufiaoui, A. Ben Bachir (1993) Effect of N-alkylbetaines on the corrosion of iron in 1 M HCl solution, Corrosion, 49, 326-334. https://doi.org/10.5006/1.3316057
M. Elachouri, M.S. Hajji, S. Kertit, E.M. Essassi, M. Salem, R. Coudert (1995) Some surfactants in the series of 2-(alkyldimethylammonio) alkanol bromides as inhibitors of the corrosion of iron in acid chloride solution, Corros. Sci., 37, 381-389. https://doi.org/10.1016/0010-938X(94)00134-R
H. Luo, Y.C. Guan, K.N. Han (1998) Inhibition of mild steel corrosion by sodium dodecyl benzene sulfonate and sodium oleate in acidic solutions, Corrosion, 54. https://doi.org/10.5006/1.3287638
M.A. Migahed, E.M.S. Azzam, A.M. Al-Sabagh (2004) Corrosion inhibition of mild steel in 1 M sulfuric acid solution using anionic surfactant, Mater. Chem. Phys., 85, 273-279. https://doi.org/10.1016/j.matchemphys.2003.12.027
M.M. Osman, A.M.A. Omar, A.M. Al-Sabagh (1997) Corrosion inhibition of benzyl triethanol ammonium chloride and its ethoxylate on steel in sulphuric acid solution, Mater. Chem. Phys. 50, 271-274. https://doi.org/10.1016/S0254-0584(97)01941-X
S.S. Abd El Rehim, H.H. Hassan, M.A. Amin (2003) The corrosion inhibition study of sodium dodecyl benzene sulphonate to aluminium and its alloys in 1.0 M HCl solution, Mater. Chem. Phys., 78, 337-348. https://doi.org/10.1016/S0254-0584(01)00602-2
R. Guo, T. Liu, X. Wei (2002) Effects of SDS and some alcohols on the inhibition efficiency of corrosion for nickel, Colloids Surfaces A Physicochem. Eng. Asp., 209, 37-45. https://doi.org/10.1016/S0927-7757(02)00032-8
D.P. Schweinsberg, G.A. George, A.K. Nanayakkara, D.A. Steinert (1988) The protective action of epoxy resins and curing agents-inhibitive effects on the aqueous acid corrosion of iron and steel, Corros. Sci., 28, 33-42. https://doi.org/10.1016/0010-938X(88)90004-2
K.R. Ansari, Sudheer, A. Singh, M.A. Quraishi (2015) Some pyrimidine derivatives as corrosion inhibitor for mild steel in hydrochloric acid, J. Dispers. Sci. Technol., 36, 908-917. https://doi.org/10.1080/01932691.2014.938349
G.Y. Elewady (2008) Pyrimidine derivatives as corrosion inhibitors for carbon-steel in 2M hydrochloric acid solution, Int. J. Electrochem. Sci., 3, 1149. https://doi.org/10.1016/S1452-3981(23)15511-8
A. Espinoza-Vazquez, G. Negrón-Silva, D. Angeles-Beltrán, M.E. Palomar-Pardavé, M.A. Romero-Romo, H. Herrera-Hernández (2011) Electro¬chemical impedance evaluation of uracil and thymine pyrimidine derivatives and its nucleosides compounds as a non-toxic corrosion inhibitors of steels in 1M HCl, ECS Trans., 36, 217. https://doi.org/10.1149/1.3660615
H. Jafari, K. Sayin, Sulfur containing compounds as corrosion inhibitors for mild steel in hydrochloric acid solution, Trans. Indian Inst. Met. 69 (2016) 805-815. https://doi.org/10.1007/s12666-015-0556-2
A. Samide (2013) A pharmaceutical product as corrosion inhibitor for carbon steel in acidic environments, J. Environ. Sci. Heal. Part A., 48, 159-165. https://doi.org/10.1080/03601234.2012.716744
H. Ashassi-Sorkhabi, B. Shaabani, D. Seifzadeh (2005) Effect of some pyrimidinic Shciff bases on the corrosion of mild steel in hydrochloric acid polution, Electrochim. Acta., 50, 3446-3452. https://doi.org/10.1016/j.electacta.2004.12.019
A.S. Fouda, M.A. Ismail, M.A. Khaled, A.A. El-Hossiany (2022) Experimental and computational chemical studies on the corrosion inhibition of new pyrimidinone derivatives for copper in nitric acid, Sci. Rep., 12, 1-19. https://doi.org/10.1038/s41598-022-20306-4
S. Lahmidi, A. Elyoussfi, A. Dafali, H. Elmsellem, N.K. Sebbar, L. El Ouasif, A.E. Jilalat, B. El Mahi, E.M. Essassi, I. Abdel-Rahman (2017) Corrosion inhibition of mild steel by two new 1, 2, 4-triazolo [1, 5-a] pyrimidine derivatives in 1 M HCl: Experimental and computational study, J. Mater. Environ. Sci., 8, 225-237.
Z.D. Stanković, M. Vuković (1996) The influence of thiourea on kinetic parameters on the cathodic and anodic reaction at different metals in H2SO4 solution, Electrochim. Acta., 41, 2529-2535. https://doi.org/10.1016/0013-4686(96)00066-7
M.A. El Khalek Khaled, K. Shalabi, M.A. Ismail, F. El Aziz Abd S (2022) Adsorption and inhibitive impact of 5-[4-(dimethylamino) benzylidene]-1, 3-dimethylbarbituric acid on carbon steel corrosion in molar hydrochloric acid solution, Zast. Mater., 63, 238-250. https://doi.org/10.5937/zasmat2203238A
I. Lukovits, I. Bakó, A. Shaban, E. Kálmán (1998) Polynomial model of the inhibition mechanism of thiourea derivatives, Electrochim. Acta., 43, 131-136. https://doi.org/10.1016/S0013-4686(97)00241-7
E.E. Ebenso, U.J. Ekpe, B.I. Ita, O.E. Offiong, U.J. Ibok (1999) Effect of molecular structure on the efficiency of amides and thiosemicarbazones used for corrosion inhibition of mild steel in hydrochloric acid, Mater. Chem. Phys., 60, 79-90. https://doi.org/10.1016/S0254-0584(99)00074-7
M.A. Quraishi, F.A. Ansari, D. Jamal (2003) Thiourea derivatives as corrosion inhibitors for mild steel in formic acid, Mater. Chem. Phys. 77, 687-690. https://doi.org/10.1016/S0254-0584(02)00130-X
E.G. Brown, E.G. Brown (1998) Pyrimidines, Ring Nitrogen Key Biomol. Biochem. N-Heterocycles, 88-127. https://doi.org/10.1007/978-94-011-4906-8_5
C. Macilwain (1993) Activists now urge caution on approval of new AIDS drug, Nature. 365, 378. https://doi.org/10.1038/365378a0
M.A. Khaled, M.A. Ismail, A.A. El-Hossiany, A.S. Fouda (2021) Novel pyrimidine-bichalcophene derivatives as corrosion inhibitors for copper in 1 M nitric acid solution, RSC Adv., 11, 25314-25333. https://doi.org/10.1039/D1RA03603C
A. Banan, S. Asadi (2024) Novel cationic and non-ionic biopolyurethanes for effective inhibition of mild steel corrosion in H2S-CO2 environment, Ind. Crops Prod., 221, 119320. https://doi.org/10.1016/j.indcrop.2024.119320
K. Haruna, T.A. Saleh, A. Lawal (2024) Acrylic acid modified indapamide-based polymer as an effective inhibitor against carbon steel corrosion in CO2-saturated NaCl with variable H2S levels: An electrochemical, weight loss and machine learning study, Surfaces and Interfaces, 105065. https://doi.org/10.1016/j.surfin.2024.105065
H. Bairagi, P. Vashishth, J. Gopal, S.K. Shukla, E.E. Ebenso, B. Mangla (2024) Polymers and their composites for corrosion inhibition application: Development, Advancement, and Future Scope-a critical review, Corros. Commun. https://doi.org/10.1016/j.corcom.2023.10.006
M.A. Ismail, S. Al-Shihry, R.K. Arafa, U. El-Ayaan (2013) Synthesis, antimicrobial activity and molecular modeling study of substituted 5-aryl-pyrimido [5, 4-c] quinoline-2, 4-diones, J. Enzyme Inhib. Med. Chem. 28, 530-538. https://doi.org/10.3109/14756366.2011.654113
K.A. Krasnov, V.G. Kartsev, A.S. Gorovoi (2000) Chemical modification of plant alkaloids. I. Aminomethylation of barbituric acid derivatives by cytisine, Chem. Nat. Compd. 36, 192-197. https://doi.org/10.1007/BF02236429
G.N. Mu, T. P Zhao, M. Liu, T. Gu (1996) Effect of metallic cations on corrosion inhibition of an anionic surfactant for mild steel, Corrosion, 52. https://doi.org/10.5006/1.3292077
R.G. Parr, R.A. Donnelly, M. Levy, W.E. Palke (1978) Electronegativity: the density functional viewpoint, J. Chem. Phys., 68, 3801-3807. https://doi.org/10.1063/1.436185
A.S. Fouda, S.A.A. El-Maksoud, A. El-Hossiany, A. Ibrahim (2019) Evolution of the corrosion-inhibiting efficiency of novel hydrazine derivatives against corrosion of stainless steel 201 in acidic medium, Int. J. Electrochem. Sci., 14, 6045-6064. https://doi.org/10.20964/2019.07.65.
K. Aramaki, M. Hagiwara, H. Nishihara (1987) The synergistic effect of anions and the ammonium cation on the inhibition of iron corrosion in acid solution, Corros. Sci., 27, 487-497. https://doi.org/10.1016/0010-938X(87)90092-8
A.S. Fouda, E. Abdel-Latif, H.M. Helal, A. El-Hossiany (2021) Synthesis and Characterization of Some Novel Thiazole Derivatives and Their Applications as Corrosion Inhibitors for Zinc in 1 M Hydrochloric Acid Solution, Russ. J. Electrochem., 57, 159-171. https://doi.org/10.1134/S1023193521020105
J. Aljourani, K. Raeissi, M.A. Golozar (2009) Benzimidazole and its derivatives as corrosion inhibitors for mild steel in 1M HCl solution, Corros. Sci. 51, 1836-1843. https://doi.org/10.1016/j.corsci.2009.05.011
M. Finšgar, J. Jackson (2014) Application of corrosion inhibitors for steels in acidic media for the oil and gas industry: A review, Corros. Sci., 86, 17-41. https://doi.org/10.1016/j.corsci.2014.04.044
A.S. Fouda, R.E. Ahmed, A. El-Hossiany (2021) Chemical, Electrochemical and Quantum Chemical Studies for Famotidine Drug as a Safe Corrosion Inhibitor for α-Brass in HCl Solution, Prot. Met. Phys. Chem. Surfaces, 57, 398-411. https://doi.org/10.1134/S207020512101010X
M.A. Migahed, E.M.S. Azzam, S.M.I. Morsy (2009) Electrochemical behaviour of carbon steel in acid chloride solution in the presence of dodecyl cysteine hydrochloride self-assembled on gold nanoparticles, Corros. Sci., 51, 1636-1644. https://doi.org/10.1016/j.corsci.2009.04.010
M.N.H. Moussa, A.A. El-Far, A.A. El-Shafei (2007) The use of water-soluble hydrazones as inhibitors for the corrosion of C-steel in acidic medium, Mater. Chem. Phys., 105, 105-113. https://doi.org/10.1016/j.matchemphys.2007.04.007
A.S. Fouda, H. Ibrahim, S. Rashwaan, A. El-Hossiany, R.M. Ahmed (2018) Expired drug (pantoprazole sodium) as a corrosion inhibitor for high carbon steel in hydrochloric acid solution, Int. J. Electrochem. Sci., 13, 6327-6346. https://doi.org/10.20964/2018.07.33
E. Bayol, K. Kayakırılmaz, M. Erbil (2007) The inhibitive effect of hexamethylenetetramine on the acid corrosion of steel, Mater. Chem. Phys., 104, 74-82. https://doi.org/10.1016/j.matchemphys.2007.02.073
O. Benali, L. Larabi, M. Traisnel, L. Gengembre, Y. Harek (2007) Electrochemical, theoretical and XPS studies of 2-mercapto-1-methylimidazole adsorption on carbon steel in 1 M HClO4, Appl. Surf. Sci. 253, 6130-6139. https://doi.org/10.1016/j.apsusc.2007.01.075
I. Epelboin, M. Keddam, H. Takenouti (1972) Use of impedance measurements for the determination of the instant rate of metal corrosion, J. Appl. Electrochem., 2, 71-79. https://doi.org/10.1007/BF00615194
B.B. Damaskin, O.A. Petrii, V.V. Batrakov, E.B. Uvarov, R. Parsons (1971) Adsorption of organic compounds on electrodes, Springer. https://doi.org/10.1007/978-1-4615-8192-5
A.S. Fouda, M. Eissa, A. El-Hossiany (2018) Ciprofloxacin as eco-friendly corrosion inhibitor for carbon steel in hydrochloric acid solution, Int. J. Electrochem. Sci., 13, 11096-11112. https://doi.org/10.20964/2018.11.86
S. Da Costa, S.M.L. Agostinho (1989) Electrochemical behavior of copper in 0.5 M H2SO4 solutions in the absence and presence of Fe (III) and benzotriazole, Corrosion, 45, 472-477. https://doi.org/10.5006/1.3582046
A.S. Fouda, S.E.H. Etaiw, A.M. Ibrahim, A.A. El-Hossiany (2023) Insights into the use of two novel supramolecular compounds as corrosion inhibitors for stainless steel in a chloride environment: experimental as well as theoretical investigation, RSC Adv., 13, 35305-35320. https://doi.org/10.1039/D3RA07397A
A.S. Fouda, M.A.A. El-Ghaffar, M.H. Sherif, A.T. El-Habab, A. El-Hossiany (2020) Novel Anionic 4-Tert-Octyl Phenol Ethoxylate Phosphate Surfactant as Corrosion Inhibitor for C-steel in Acidic Media, Prot. Met. Phys. Chem. Surfaces, 56, 189-201. https://doi.org/10.1134/S2070205120010086
R.W. Bosch, J. Hubrecht, W.F. Bogaerts, B.C. Syrett (2001) Electrochemical frequency modulation: a new electrochemical technique for online corrosion monitoring, Corrosion, 57, 60-70. https://doi.org/10.5006/1.3290331
H.A. Ali, A.A. El-Hossiany, A.S. Abousalem, M.A. Ismail, A.S. Fouda, E.A. Ghaith (2024) Synthesis of new binary trimethoxyphenylfuran pyrimidinones as proficient and sustainable corrosion inhibitors for carbon steel in acidic medium: experimental, surface morphology analysis, and theoretical studies, BMC Chem., 18, 182. https://doi.org/10.1186/s13065-024-01280-6
H. Ashassi-Sorkhabi, N. Ghalebsaz-Jeddi (2005) Inhibition effect of polyethylene glycol on the corrosion of carbon steel in sulphuric acid, Mater. Chem. Phys., 92, 480-486. https://doi.org/10.1016/j.matchemphys.2005.01.059
K.F. Khaled, N. Hackerman (2003) Investigation of the inhibitive effect of ortho-substituted anilines on corrosion of iron in 1 M HCl solutions, Electrochim. Acta., 48, 2715-2723. https://doi.org/10.1016/S0013-4686(03)00318-9
Y. Feng, S. Chen, W. Guo, Y. Zhang, G. Liu (2007) Inhibition of iron corrosion by 5, 10, 15, 20-tetraphenylporphyrin and 5, 10, 15, 20-tetra-(4-chlorophenyl) porphyrin adlayers in 0.5 M H2SO4 solutions, J. Electroanal. Chem., 602, 115-122. https://doi.org/10.1016/j.jelechem.2006.12.016
Y.M. Abdallah, K. Shalabi, N.M. Bayoumy (2018) Eco-friendly synthesis, biological activity and evaluation of some new pyridopyrimidinone derivatives as corrosion inhibitors for API 5L X52 carbon steel in 5% sulfamic acid medium, J. Mol. Struct., 1171, 658-671. https://doi.org/10.1016/j.molstruc.2018.06.045
S.K. Gupta, R.K. Mitra, M. Yadav, O. Dagdag, A. Berisha, B.B. Mamba, T.T.I. Nkambule, E.E. Ebenso, S.K. Singh (2023) Electrochemical, surface morphological and computational evaluation on carbohydrazide Schiff bases as corrosion inhibitor for mild steel in acidic medium, Sci. Rep., 13, 15108. https://doi.org/10.1038/s41598-023-41975-9
G. Gece, S. Bilgiç (2009) Quantum chemical study of some cyclic nitrogen compounds as corrosion inhibitors of steel in NaCl media, Corros. Sci., 51, 1876-1878. https://doi.org/10.1016/j.corsci.2009.04.003
N. Palaniappan, I.S. Cole, A.E. Kuznetsov (2020) Experimental and computational studies of graphene oxide covalently functionalized by octylamine: electrochemical stability, hydrogen evolution, and corrosion inhibition of the AZ13 Mg alloy in 3.5% NaCl, Rsc Adv., 10, 11426-11434. https://doi.org/10.1039/C9RA10702A
I.B. Obot, D.D. Macdonald, Z.M. Gasem (2015) Density functional theory (DFT) as a powerful tool for designing new organic corrosion inhibitors. Part 1: an overview, Corros. Sci., 99, 1-30. https://doi.org/10.1016/j.corsci.2015.01.037
D. Romani, S.A. Brandan (2020) Investigating the behaviors of corticosterone hormone in different solvents by using DFT calculations and experimental data, Biointerface Res. Appl. Chem., 10, 4876-4892. https://doi.org/10.33263/BRIAC101.876892
I. Lukovits, E. Kalman, F. Zucchi (2001) Corrosion inhibitors-correlation between electronic structure and efficiency, Corrosion, 57, 3-8. https://doi.org/10.5006/1.3290328
I.B. Obot, S. Kaya, C. Kaya, B. Tüzün (2016) Density Functional Theory (DFT) modeling and Monte Carlo simulation assessment of inhibition performance of some carbohydrazide Schiff bases for steel corrosion, Phys. E Low-Dimensional Syst. Nanostructures, 80, 82-90. https://doi.org/10.1016/j.physe.2016.01.024
K. Shalabi, A.A. Nazeer (2019) Ethoxylates nonionic surfactants as promising environmentally safe inhibitors for corrosion protection of reinforcing steel in 3.5% NaCl saturated with Ca (OH) 2 solution, J. Mol. Struct., 1195, 863-876. https://doi.org/10.1016/j.molstruc.2019.06.033
K. Shalabi, O.A. El-Gammal, Y.M. Abdallah (2021) Adsorption and inhibition effect of tetraaza-tetradentate macrocycle ligand and its Ni (II), Cu (II) complexes on the corrosion of Cu10Ni alloy in 3.5% NaCl solutions, Colloids Surfaces A Physicochem. Eng. Asp., 609, 125653. https://doi.org/10.1016/j.colsurfa.2020.125653
Y.S. Mary, C.Y. Panicker, M. Sapnakumari, B. Narayana, B.K. Sarojini, A.A. Al-Saadi, C. Van Alsenoy, J.A. War (2015) FT-IR, NBO, HOMO-LUMO, MEP analysis and molecular docking study of 1-[3-(4-Fluorophenyl)-5-phenyl-4, 5-dihydro-1H-pyrazol-1-yl] ethanone, Spectrochim. Acta Part A Mol. Biomol. Spectrosc., 136, 483-493. https://doi.org/10.1016/j.saa.2014.09.061
S. Ramalingam, P.D.S. Babu, S. Periandy, E. Fereyduni (2011) Vibrational investigation, molecular orbital studies and molecular electrostatic potential map analysis on 3-chlorobenzoic acid using hybrid computational calculations, Spectrochim. Acta Part A Mol. Biomol. Spectrosc., 84, 210-220. https://doi.org/10.1016/j.saa.2011.09.030
L.H. Madkour, S. Kaya, I.B. Obot (2018) Computational, Monte Carlo simulation and experimental studies of some arylazotriazoles (AATR) and their copper complexes in corrosion inhibition process, J. Mol. Liq., 260, 351-374. https://doi.org/10.1016/j.molliq.2018.01.055
K. Shalabi, A.M. Helmy, A.H. El-Askalany, M.M. Shahba (2019) New pyridinium bromide mono-cationic surfactant as corrosion inhibitor for carbon steel during chemical cleaning: Experimental and theoretical studies, J. Mol. Liq., 293, 111480. https://doi.org/10.1016/j.molliq.2019.111480
M. Özcan, İ. Dehri, M. Erbil (2004) Organic sulphur-containing compounds as corrosion inhibitors for mild steel in acidic media: correlation between inhibition efficiency and chemical structure, Appl. Surf. Sci., 236, 155-164. https://doi.org/10.1016/j.apsusc.2004.04.017
C. Verma, E.E. Ebenso, M.A. Quraishi (2020) Molecular structural aspects of organic corrosion inhibitors: Influence of-CN and-NO2 substituents on designing of potential corrosion inhibitors for aqueous media, J. Mol. Liq., 316, 113874. https://doi.org/10.1016/j.molliq.2020.113874
M.A. Migahed (2005) Electrochemical investigation of the corrosion behaviour of mild steel in 2 M HCl solution in presence of 1-dodecyl-4-methoxy pyridinium bromide, Mater. Chem. Phys., 93, 48-53. https://doi.org/10.1016/j.matchemphys.2005.02.003
