Torsemide and Furosemide as Green Inhibitors for the Corrosion of Mild Steel in Hydrochloric Acid Medium

被引:97
作者
Kumar, Sappani Hari [1 ]
Karthikeyan, Sambantham [2 ]
机构
[1] VIT Univ, Sch Adv Sci, Mat Chem Div, Vellore 632014, Tamil Nadu, India
[2] VIT Univ, Ctr Nanobiotechnol, Vellore 632014, Tamil Nadu, India
关键词
COLD-ROLLED STEEL; IRON CORROSION; SCHIFF-BASE; ADSORPTION; DERIVATIVES; ALUMINUM; BEHAVIOR; DRUGS; POLARIZATION; SURFACE;
D O I
10.1021/ie400815w
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The performance of torsemide and furosemide drugs as corrosion inhibitors for mild steel in 1 N HCl was thoroughly investigated by weight loss and electrochemical methods. The inhibition efficiencies of drugs obtained by all methods were in good agreement with each other. Torsemide exhibited higher inhibition efficiencies than furosemide in all the experimental studies. Polarization studies revealed that the inhibiting action of the compounds is under mixed control. The free energy of adsorption and the influence of temperature on the adsorption of inhibitors onto a mild steel surface have been reported. The adsorption of the compounds was found to obey the Langmuir adsorption isotherm. The mechanism of inhibition and formation of the Fe-inhibitor complex were confirmed by FT-IR and UV-visible absorption spectral analysis. The scanning electron microscopy (SEM) and atomic force microscopy (AFM) results established the formation of a protective layer on the mild steel surface. Quantum chemical calculations were applied to correlate the inhibition performance of inhibitors with their electronic structural parameters.
引用
收藏
页码:7457 / 7469
页数:13
相关论文
共 64 条
[41]   New eco-friendly cationic surfactants: Synthesis, characterization and applicability as corrosion inhibitors for carbon steel in 1 N HCl [J].
Negm, N. A. ;
Kandile, N. G. ;
Aiad, I. A. ;
Mohammad, M. A. .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2011, 391 (1-3) :224-233
[42]   Quantum chemical investigation and statistical analysis of the relationship between corrosion inhibition efficiency and molecular structure of xanthene and its derivatives on mild steel in sulphuric acid [J].
Obi-Egbedi, N. O. ;
Obot, I. B. ;
El-Khaiary, Mohammad I. .
JOURNAL OF MOLECULAR STRUCTURE, 2011, 1002 (1-3) :86-96
[43]   Anticorrosion Potential of 2-Mesityl-1H-imidazo[4,5-f][1,10]phenanthroline on Mild Steel in Sulfuric Acid Solution: Experimental and Theoretical Study [J].
Obot, I. B. ;
Obi-Egbedi, N. O. ;
Eseola, A. O. .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2011, 50 (04) :2098-2110
[44]   Antifungal drugs as corrosion inhibitors for aluminium in 0.1 M HCl [J].
Obot, I. B. ;
Obi-Egbedi, N. O. ;
Umoren, S. A. .
CORROSION SCIENCE, 2009, 51 (08) :1868-1875
[45]   Effect of 2-amino-3-mercaptopropanoic acid (cysteine) on the corrosion behaviour of low carbon steel in sulphuric acid [J].
Oguzie, E. E. ;
Li, Y. ;
Wang, F. H. .
ELECTROCHIMICA ACTA, 2007, 53 (02) :909-914
[46]   AC and DC study of the temperature effect on mild steel corrosion in acid media in the presence of benzimidazole derivatives [J].
Popova, A ;
Sokolova, E ;
Raicheva, S ;
Christov, M .
CORROSION SCIENCE, 2003, 45 (01) :33-58
[47]   Influence of tramadol [2-[(dimethylamino)methyl]-1-(3-methoxyphenyl) cyclohexanol hydrate] on corrosion inhibition of mild steel in acidic media [J].
Prabhu, R. A. ;
Shanbhag, A. V. ;
Venkatesha, T. V. .
JOURNAL OF APPLIED ELECTROCHEMISTRY, 2007, 37 (04) :491-497
[48]   Inhibitive action of indole-5-carboxylic acid towards corrosion of mild steel in deaerated 0.5 M sulfuric acid solutions [J].
Quartarone, G. ;
Bonaldo, L. ;
Tortato, C. .
APPLIED SURFACE SCIENCE, 2006, 252 (23) :8251-8257
[49]   Green approach to corrosion inhibition of mild steel in hydrochloric acid and sulphuric acid solutions by the extract of Murraya koenigii leaves [J].
Quraishi, M. A. ;
Singh, Ambrish ;
Singh, Vinod Kumar ;
Yadav, Dileep Kumar ;
Singh, Ashish Kumar .
MATERIALS CHEMISTRY AND PHYSICS, 2010, 122 (01) :114-122
[50]  
RiggsJr O.L., 1973, CORROSION INHIBITORS, V2, P109