Use of Expired Naftifine Drug as Corrosion Inhibitor for Copper in Hydrochloric Acid

Raghavendra, Narasimha

doi:10.30799/jaec.056.19050101

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…In order to simulate the aggressiveness of the pickling solutions for mild steel, expired drugs were tested in the same solution but at a temperature of 60 °C. For expired Lorazepam (0.4 g L −1 ), the IE s were 82.7% (WL), 96.5% (AAS) and 87.7% (PDP) [ 86 ]; for expired Doxercalciferol (0.4 g L −1 ) were 95.4% (AAS), 87.0% (PDP) and 88.6% (EIS) [ 70 ]; for expired Ceftin (0.4 g L −1 ) were 93.0% (WL) and 94.4% (AAS) [ 64 ]; for expired Fluoxymesterone (0.2 g L −1 ) were 94.2% (AAS), 87.5% (PDP) and 88.8% (EIS) [ 71 ].…”

Section: Inhibitory Efficiency Of Expired Drugsmentioning

confidence: 99%

“…Very good IEs were obtained for Abacavir at concentrations of 0.4 g L −1 : 95% (WL), 94% (AAS) and 95% (PDP). In order to simulate the aggressiveness of the pickling solutions for mild steel, expired drugs were tested in the same solution but at a temperature of 60 • C. For expired Lorazepam (0.4 g L −1 ), the IEs were 82.7% (WL), 96.5% (AAS) and 87.7% (PDP) [86]; for expired Doxercalciferol (0.4 g L −1 ) were 95.4% (AAS), 87.0% (PDP) and 88.6% (EIS) [70]; for expired Ceftin (0.4 g L −1 ) were 93.0% (WL) and 94.4% (AAS) [64]; for expired Fluoxymesterone (0.2 g L −1 ) were 94.2% (AAS), 87.5% (PDP) and 88.8% (EIS) [71]. Dohare et al [58] carried out studies regarding the values of the inhibitor concentration preferred in industrial applications, e.g., 50-100 ppm.…”

Section: Anticorrosive Effect Of Expired Drugsmentioning

confidence: 99%

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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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Section: Inhibitory Efficiency Of Expired Drugsmentioning

confidence: 99%

Section: Anticorrosive Effect Of Expired Drugsmentioning

confidence: 99%

Efficiency of Expired Drugs Used as Corrosion Inhibitors: A Review

et al. 2023

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“…Inhibition efficiencies have been determined by weight loss measurements (WLM), Tafel slope method (TSM) and electrochemical impedance spectroscopy (EIS) ( Table 5) [60]. For copper in 3 M HCl, Narasimha Raghavendra et al used expired Famotidine as corrosion inhibitor with an efficiency of 86% after a weight loss test during 4 h, at 0.4 g L -1 drug concentration [61] and expired Naftifine (active substance: naftifine hydrochloride) in 5 M HCl, with 69% efficiency in the same test conditions [62].…”

Section: Expired Drugs As Corrosion Inhibitorsmentioning

confidence: 99%

Expired drugs as inhibitors in electrochemical processes – a mini-review

Vaszilcsin¹,

Duca²,

Flueraş³

et al. 2019

Studia UBB Chemia

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Inhibitors of electrochemical processes have useful applications in corrosion protection of metals and alloys, as well as in galvanotechnics as levellers for the cathodic metal deposition. Active substances of drugs are good inhibitors, taking into account that they have in their molecules structures containing π electrons or lone pair electrons, being able to adsorb on the metal surfaces through weak physical or strong chemical interactions. Significant inhibition efficiency of several drugs have been proved many years ago, but unfortunately, drugs are expensive and their practical applications as corrosion inhibitors for metal and alloys has been delayed. In the present papers, the studies on the inhibition properties in metal corrosion processes of expired drugs have been emphasized, starting with the paper of R. S. Abdel Hameed, published in 2009. There are few studies on the expired drugs used as levellers in the cathodic metal deposition.

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Update on Pharmacological Drugs and Macrocyclic Compounds as Corrosion Inhibitors

Rani,

Aslam,

Nand

et al. 2024

ChemistrySelect

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Corrosion of metals and alloys is a critical challenge across various industries, leading to substantial financial losses and safety risks. The use of corrosion inhibitors has proven to be an effective strategy in mitigating this issue. This review provides a comprehensive overview of the latest advancements in the use of macrocyclic compounds and pharmacological drugs as corrosion inhibitors. These compounds exhibit unique chemical structures and functional groups, which enhance their ability to improve corrosion resistance through adsorption onto metal surfaces, thereby reducing oxidation and electrochemical reactions. The review highlights the effectiveness of these inhibitors in diverse corrosive environments and their compatibility with different metals and alloys, including steel, aluminum, and copper. Key findings reveal their superior performance in creating protective barriers and their potential for offering more sustainable, eco‐friendly solutions compared to conventional inhibitors. This review emphasizes their inhibitory effects, investigates their underlying mechanisms, and underscores the importance of ongoing research and innovation to maximize their use as effective and sustainable corrosion prevention techniques.

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Use of Expired Naftifine Drug as Corrosion Inhibitor for Copper in Hydrochloric Acid

Cited by 6 publications

References 9 publications

Efficiency of Expired Drugs Used as Corrosion Inhibitors: A Review

Efficiency of Expired Drugs Used as Corrosion Inhibitors: A Review

Expired drugs as inhibitors in electrochemical processes – a mini-review

Update on Pharmacological Drugs and Macrocyclic Compounds as Corrosion Inhibitors

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