Rapid investigation expiry drug green corrosion inhibitor on mild steel in NaCl medium

Palaniappan, N.; Joseph, Alphonsa; Cole, Ivan; Balasubramanian, K.; Bosco, I

doi:10.1016/j.mseb.2019.114423

Cited by 32 publications

(8 citation statements)

References 58 publications

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“…In this case, the inhibitors are first adsorbed onto the metal surface and thereafter impede corrosion either by merely blocking the reaction sites (anodic and cathodic) or by altering the mechanism of the anodic and cathodic partial processes (40). The maximum inhibition efficiency, obtained using 300 ppm of omeprazole drugs, is 96% when it is compared by the obtained efficiency in the cited references (previous works) ( [24][25][26][27]31).…”

Section: Resultsmentioning

confidence: 95%

“…They concluded that the inhibition depends on various factors, including nature and concentration of the additives, temperature and nature of the metal and aggressive environments. N. Palaniappan et al, (31) investigated the corrosion inhibition performance of expiry drugs as green inhibitors for steel in NaCl medium. He concluded that the expiry drug molecules are multifunctional groups and lone pair electron species, it could easily interact with metal surface and reduce major corrosion problem of the industry.…”

Section: Introductionmentioning

confidence: 99%

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Analytical and electroanalytical techniques in the determination of (Fe⁺²) results from iron corrosion: effect of omeprazole drugs as green inhibitors

Al-Bagawi

2020

Green Chemistry Letters and Reviews

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Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Analytical and electroanalytical techniques in the determination of (Fe⁺²) results from iron corrosion: effect of omeprazole drugs as green inhibitors

Al-Bagawi

2020

Green Chemistry Letters and Reviews

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“…This significant difference was explained by the fact that the values obtained by PDP were quasi-instantaneous and referred to the beginning of the corrosion process when the metal surface was clean. The WL values were obtained over a long period of time (5 days), when corrosion products accumulated on the metal surface and possible iron complexes with the inhibitors in the solution, which had a protective effect [ 81 ]. In a solution of 0.1 M Na 2 SO 4 + 3% NaCl, Bustos-Terrones et al [ 80 ] reported an IE of 84% for expired Fluconazole and 91% for expired Lanzoprazole.…”

Section: Inhibitory Efficiency Of Expired Drugsmentioning

confidence: 99%

Efficiency of Expired Drugs Used as Corrosion Inhibitors: A Review

et al. 2023

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Corrosion inhibitors represent one of the most commonly used methods for significantly reducing the corrosion rate of metals and alloys. Adsorption inhibitors have a wide range of applications in cooling water systems, deicing solutions for aircrafts, airports and ways, etching and degreasing solutions, oil pipelines, paints and coatings and metal processing solutions. Adsorption corrosion inhibitors of metals and alloys are generally organic compounds that contain structures with heteroatoms (N, P, S, As, O) in their molecules, having lone pair electrons or π electrons in aromatic rings or multiple bonds. They enable relatively strong interactions between the metal atoms and organic molecules, resulting in a protective layer of organic molecules adsorbed at the metal–corrosive solution interface. Most molecules of active substances from drugs contain similar structures, which is why many drugs have been already tested as corrosion inhibitors. One of the major disadvantages of using drugs for this purpose is their particularly high price. To overcome this impediment, the possibility of using expired drugs as corrosion inhibitors has been investigated since 2009. The present paper is an exhaustive compilation of the scientific published papers devoted to the use of expired drugs as corrosion inhibitors in various aggressive solutions. The inhibitory efficiencies of expired drugs are presented as a function of the studied metal or alloy and the nature of the aggressive solution, as well as the concentration of the inhibitor in such a solution. Research has especially been focused on mild and carbon steel and less on stainless steel, as well as on some metals such as copper, zinc, nickel, tin and aluminum and its alloys. The experimental methods used to assess the inhibitory efficiencies of expired drugs are briefly discussed. Also, the available information on the stability of the active substances in the drugs is presented, although most authors were not concerned with this aspect. Finally, several actions are revealed that must be undertaken by researchers so that the results obtained in the study of the anticorrosive action of expired drugs can be applied at the industrial level and not remain only an academic concern.

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“…As shown in Table 2, with the increase of inhibitor concentration, the R ct value increases and C dl decreases, which is attributed to the increase of electric double layer thickness at the metal/solution interface, and the number of FH inhibitor molecules adsorbed on the steel surface increases, resulting in the decrease of dielectric constant value. 42…”

Section: Ftir Spectra Of Fhmentioning

confidence: 99%

Expired flunarizine hydrochloride as corrosion inhibitors for Q235 steel in hydrochloric acid medium: Experimental and computational investigation

Lin¹,

Zhang

Huang

et al. 2023

Surface & Interface Analysis

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The corrosion of carbon steel is always a very serious issue, and the addition of corrosion inhibitors is an effective approach to prohibiting the corrosion of carbon steel. Because expired drugs are environmentally friendly, green, and non‐toxic; thus, this work provides a new idea for the treatment of expired drugs. The expired flunarizine hydrochloride (FH) is used as corrosion inhibitors for Q235 steel, investigating the corrosion inhibition efficiency of expired FH with different concentrations for carbon steel and illustrating the corrosion inhibition mechanism. Electrochemical impedance and Tafel curves are used to investigate the corrosion inhibition of carbon steel under 1 M HCl solution with different concentrations of the expired FH, and the corrosion efficiency is calculated according to the immersion tests, and the corrosion inhibition efficiency is more than 88.5%. Scanning electron microscopy (SEM), Fourier transform infrared spectrometer (FTIR), and Raman spectroscopy strongly support the results of the electrochemical experiment. Besides, the simulation results also provide the strong supports for the experimental results.

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Rapid investigation expiry drug green corrosion inhibitor on mild steel in NaCl medium

Cited by 32 publications

References 58 publications

Analytical and electroanalytical techniques in the determination of (Fe⁺²) results from iron corrosion: effect of omeprazole drugs as green inhibitors

Analytical and electroanalytical techniques in the determination of (Fe⁺²) results from iron corrosion: effect of omeprazole drugs as green inhibitors

Efficiency of Expired Drugs Used as Corrosion Inhibitors: A Review

Expired flunarizine hydrochloride as corrosion inhibitors for Q235 steel in hydrochloric acid medium: Experimental and computational investigation

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Rapid investigation expiry drug green corrosion inhibitor on mild steel in NaCl medium

Cited by 32 publications

References 58 publications

Analytical and electroanalytical techniques in the determination of (Fe+2) results from iron corrosion: effect of omeprazole drugs as green inhibitors

Analytical and electroanalytical techniques in the determination of (Fe+2) results from iron corrosion: effect of omeprazole drugs as green inhibitors

Efficiency of Expired Drugs Used as Corrosion Inhibitors: A Review

Expired flunarizine hydrochloride as corrosion inhibitors for Q235 steel in hydrochloric acid medium: Experimental and computational investigation

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Analytical and electroanalytical techniques in the determination of (Fe⁺²) results from iron corrosion: effect of omeprazole drugs as green inhibitors

Analytical and electroanalytical techniques in the determination of (Fe⁺²) results from iron corrosion: effect of omeprazole drugs as green inhibitors