Corrosion inhibition of new thiocarbohydrazides on the carbon steel in hydrochloric acid solution

Esmaeili, N.; Neshati, Jaber; Yavari, Issa

doi:10.1016/j.jiec.2014.07.004

Cited by 39 publications

(17 citation statements)

References 25 publications

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“…to improve oil recovery and removal of scales and salt deposits [1][2][3]. These acids cause severe corrosion of the oil well/pipe or such structures made up of carbon steel [4][5][6][7]. To prevent this corrosive attack, the use of organic inhibitors is one of the most prominent methods [8,9].…”

Section: Introductionmentioning

confidence: 99%

Expired Podocip drug as potential corrosion inhibitor for carbon steel in acid chloride solution

2018

Int. J. Corros. Scale Inhib.

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Section: Introductionmentioning

confidence: 99%

Expired Podocip drug as potential corrosion inhibitor for carbon steel in acid chloride solution

2018

Int. J. Corros. Scale Inhib.

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“…[2]. Acidic media results in a uniform corrosion of mild steel with pitting at high concentrations of acid [3][4][5][6]. The use of inhibitors is one of the most proficient methods for protection of metals from corrosion in acid medium.…”

Section: Introductionmentioning

confidence: 99%

“…The use of inhibitors is one of the most proficient methods for protection of metals from corrosion in acid medium. Organic compounds containing N, O, S heteroatoms and p electrons in their molecules are considered as effective corrosion inhibitors [2][3][4][5]. The inhibitor molecules form a protective film on metal surface that prevents corrosion [7].…”

Section: Introductionmentioning

confidence: 99%

Expired atorvastatin drug as corrosion inhibitor for mild steel in hydrochloric acid solution

et al. 2017

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The application of expired drugs as corrosion inhibitors provides a cost effective and environmentally benign alternative to otherwise tedious and costly disposal/ degradation process. In this context, we herein investigate the use of expired atorvastatin (EA) for corrosion inhibition of mild steel in 1 M HCl solution using weight loss, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (Tafel) methods. Fresh atorvastatin (FA) drug was also used for above studies for comparison purpose to understand whether there is any significant difference between the inhibition efficiency of the two after the expiration date of the drug. EIS analysis shows an increase in polarization resistance due to the adsorbed inhibitor molecules on metal surface. Potentiodynamic polarization indicates that both the EA and FA act as mixed-type inhibitors but predominantly behave as cathodic inhibitors. The adsorption of EA and FA on mild steel surface follows the Langmuir adsorption isotherm. SEM shows a smoother surface of mild steel in the presence of FA and EA drug in acidic solution. Both the fresh drug and its expired counterpart showed almost similar results in all the studies, thereby verifying the validity of the expired atorvastatin drug as a novel and efficient corrosion inhibitor for mild steel.

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“…SECM technique was used to obtain the change of Faraday current distribution on the surface of substrate by micro‐probe to scan at various positions on the substrate surface, thus directly characterizing the morphology and electrochemical activity of the matrix surface. The distance from the tip above the sample is determined by approach curves . When the Q235 steel electrode was under open circuit potential, the substrate undergoes self‐corrosion reaction resulting in the release of Fe 2+ ions.…”

Section: Resultsmentioning

confidence: 99%

Adsorption and corrosion inhibition properties of pyridine‐2‐aldehyde‐2‐quinolylhydrazone for Q235 steel in acid medium: Electrochemical, thermodynamic, and surface studies

Zhang

Wang

et al. 2018

Materials & Corrosion

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A new organic compound pyridine‐2‐aldehyde‐2‐quinolylhydrazone (PAQ) was synthesized and its structure was characterized by 1H NMR and FTIR spectroscopy. The inhibition effect of PAQ on the Q235 steel corrosion was investigated with potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM)/energy dispersive X‐ray spectroscopy (EDX), and scanning electrochemical microscope (SECM). The inhibition mechanism was further studied in view of the effect of inhibitor concentration and temperature on the corrosion of steel. Polarization studies showed that the PAQ acted as a mixed‐type inhibitor. The adsorption of PAQ inhibitor on Q235 steel surface follows Langmuir adsorption isotherm and contains both physical and chemical type adsorptive. The formation and characteristic of protective layer on the steel surface were verified by surface analysis techniques (SEM, EDX, SECM).

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Corrosion inhibition of new thiocarbohydrazides on the carbon steel in hydrochloric acid solution

Cited by 39 publications

References 25 publications

Expired Podocip drug as potential corrosion inhibitor for carbon steel in acid chloride solution

Expired Podocip drug as potential corrosion inhibitor for carbon steel in acid chloride solution

Expired atorvastatin drug as corrosion inhibitor for mild steel in hydrochloric acid solution

Adsorption and corrosion inhibition properties of pyridine‐2‐aldehyde‐2‐quinolylhydrazone for Q235 steel in acid medium: Electrochemical, thermodynamic, and surface studies

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