Influence of the Molecular Structure on the Inhibitor Properties of Benzimidazole Derivatives on Mild Steel Corrosion in 1 M Hydrochloric Acid

Popova, A.; Christov, M.; Deligeorgiev, Todor

doi:10.5006/1.3277604

Cited by 111 publications

(55 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These inhibitors have also found useful application in the formulation of primers and anti-corrosive coatings, but a major disadvantage is their toxicity and as such their use has come under severe criticism. Among the alternative corrosion inhibitors, organic substances containing polar functions with nitrogen, sulphur, and/or oxygen in the conjugated system have been reported to exhibit good inhibiting properties [1][2][3][4]. The inhibitive characteristics of such compounds derive from the adsorption ability of their molecules, with the polar group acting as the reaction centre for the adsorption process.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Inhibitive Effect and Adsorption Behaviour of Hibiscus Sabdariffa Extract on Mild Steel in Acidic Media

Oguzie

2007

Port. Electrochim. Acta

122

View full text Add to dashboard Cite

The inhibiting action of the calyx extract of Hibiscus sabdariffa on mild steel corrosion in 2 M HCl and 1 M H 2 SO 4 solutions was assessed using a gasometric technique. The results demonstrate that Hibiscus sabdariffa extract suppressed the corrosion reaction in both acid media and inhibition efficiency increased with extract concentration with slightly higher values obtained in 1 M H 2 SO 4 . Synergistic effects increased the efficiency of the extract in the presence of halide additives. Adsorption characteristics of the extract were approximated by the Langmuir isotherm. The inhibition mechanisms, estimated from the temperature dependence of inhibition efficiency as well from kinetic and activation parameters show that the extract functioned via mixedinhibition mechanism. It is suggested that molecular as well as protonated organic species in the extract contribute to the observed inhibiting action.

show abstract

Section: Introductionmentioning

confidence: 99%

Corrosion Inhibitive Effect and Adsorption Behaviour of Hibiscus Sabdariffa Extract on Mild Steel in Acidic Media

Oguzie

2007

Port. Electrochim. Acta

122

View full text Add to dashboard Cite

show abstract

“…It is reported that nitrogen-containing compounds such as azole derivatives [3][4][5][6][7], imidazolin derivatives [8,9], alkyl and aryl amines [10][11][12] perform better in hydrochloric acid. In general, most of the effective and efficient inhibitors in usage are organic compounds having π bonds and heteroatoms like nitrogen, sulphur and oxygen atoms, etc., in their structures [13].…”

Section: Introductionmentioning

confidence: 99%

The Inhibitory Effect of Diethanolamine on Corrosion of Mild Steel in 0.5 M Sulphuric Acidic Medium

Singh¹,

Bhrara²,

Singh³

2007

Port. Electrochim. Acta

View full text Add to dashboard Cite

The inhibitory effect of diethanolamine (DEA) on corrosion of mild steel in 0.5 M H 2 SO 4 was investigated by various corrosion monitoring techniques. Galvanostatic polarization study revealed that this compound is a very good inhibitor. The inhibition efficiency (I%) varies in the range of 88.7% to 55.3 % for a concentration range of 10 -3 M to 10 -7 M at 303 K, respectively. A study of corrosion potential (E corr ) reveals that DEA is a mixed type inhibitor. DEA inhibited mild steel corrosion due to physical adsorption of the inhibitor on the metal surface. The study at higher temperatures indicates that the inhibition efficiency decreases with the increase in temperature. The adsorption of DEA on the mild steel surface in 0.5 M H 2 SO 4 follows the Frumkin's adsorption isotherm. The results of potentiostatic polarization study revealed that DEA is a strong passivating additive. The results of infra red (IR) spectroscopy, scanning electron microscopy (SEM) and quantum chemical study supplement the results of the electrochemical techniques.

show abstract

“…Because of the general aggressiveness of acid solutions, organic inhibitors are commonly used to reduce the corrosion attack on metallic materials [1]. Among the inhibitors which are effective in acid solutions there are nitrogen containing compounds such as derivatives of amines [2][3][4] pyridazine [5], quinoline and pyridine [6], pyrazole [7,8], pyrazine [9], acridine [10], benzimidazole [11][12][13] and triazole [14][15][16][17][18][19]. Previous studies have shown that indole and some its derivatives display good inhibiting effects on steel and copper corrosion in acid solutions [20][21][22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Inhibitive action of gramine towards corrosion of mild steel in deaerated 1.0M hydrochloric acid solutions

et al. 2012

View full text Add to dashboard Cite

a b s t r a c tThe effect of addition of gramine on mild steel dissolution in deaerated 1.0 M hydrochloric acid was studied through potentiodynamic polarisation curves, electrochemical impedance spectroscopy and gravimetric measurements in the temperature range from 25°C to 55°C. Gramine was found to shift the corrosion potentials towards less noble values and decrease both dissolution of mild steel and hydrogen evolution reaction. Gramine did not affect the corrosion reaction mechanism (blocking effect). Results obtained from the several measurement techniques were in good agreement and revealed good inhibition efficiencies in the concentration range (0.75 mM Ä 7.5 mM) particularly at higher concentrations.

show abstract

Influence of the Molecular Structure on the Inhibitor Properties of Benzimidazole Derivatives on Mild Steel Corrosion in 1 M Hydrochloric Acid

Cited by 111 publications

References 0 publications

Corrosion Inhibitive Effect and Adsorption Behaviour of Hibiscus Sabdariffa Extract on Mild Steel in Acidic Media

Corrosion Inhibitive Effect and Adsorption Behaviour of Hibiscus Sabdariffa Extract on Mild Steel in Acidic Media

The Inhibitory Effect of Diethanolamine on Corrosion of Mild Steel in 0.5 M Sulphuric Acidic Medium

Inhibitive action of gramine towards corrosion of mild steel in deaerated 1.0M hydrochloric acid solutions

Contact Info

Product

Resources

About