Synthesis of ethylene bis [(2-hydroxy-5,1,3-phenylene) bis methylene] tetraphosphonic acid and their anticorrosive effect on carbon steel in 3%NaCl solution

Sait, Naima; Aliouane, Nabila; Toukal, Linda; Hammache, H.; Al-Noaimi, Mousa; Hélesbeux, Jean-Jacques; Duval, Olivier

doi:10.1016/j.molliq.2021.115316

Cited by 9 publications

(2 citation statements)

References 74 publications

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“…The characterization of anti-corrosion properties of the analyzed amines were based on the parameters defined by the highest occupied and the lowest unoccupied molecular orbitals (HOMO and LUMO). The analysis involved consideration of the HOMO–LUMO energy gap (ΔE), electronegativity (χ), dipole moment (µ), global hardness (η), global softness (σ), number of transferred electrons (ΔN) and back-donation energy (ΔE b-d ) calculated using the following formulas [ 34 , 35 , 36 ]: ΔE = E LUMO − E HOMO

…”

Section: Theory and Calculation Methodsmentioning

confidence: 99%

Quantum Chemical Analysis of the Corrosion Inhibition Potential by Aliphatic Amines

2021

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Destructive corrosion processes lead to the loss of primary mechanical properties of metal construction materials, which generates additional costs during their maintenance connected with repairs and protection. The effectiveness of corrosion inhibitors can be determined by using many methods, in particular quantum chemical modeling. The subject of the theoretical analyses presented in this work involves the anticorrosion properties of amines with various chemical structures. Evaluation of the corrosion inhibition properties of selected amines was performed on the basis of the HOMO–LUMO energy gap, dipole moment (µ), electronegativity (χ) determined as a result of the energy of the highest occupied molecular orbital (HOMO) and the energy of the lowest unoccupied molecular orbital (LUMO). Moreover, the HSAB (Hard and Soft Acids and Bases) theory was used to explain the reactivity of the analyzed amines, while the Mulliken population analysis was used to determine their electrostatic interactions with the surface of protected metal. The obtained results indicate that the protonation reaction of aliphatic amines leads to a change in the nature of the formation of a coordination bond with the surface of the protected metal. In turn, the quantum chemical calculations showed that the protonation reaction of aliphatic amines leads to a decrease in their corrosion inhibition efficiency. Most of the analyzed parameters indicated that tertiary amines are characterized by the highest corrosion inhibition efficiency.

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…”

Section: Theory and Calculation Methodsmentioning

confidence: 99%

Quantum Chemical Analysis of the Corrosion Inhibition Potential by Aliphatic Amines

2021

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“…[5][6][7] Organic compounds possessing oxygen, nitrogen, phosphorus and sulfur have been employed extensively as organic inhibitors. [8][9][10][11] However, the majority of them are extremely harmful to both humans and the environment. Due to these harmful impacts, natural anti-corrosion treatments that are safe for the environment are now being used.…”

Section: Introductionmentioning

confidence: 99%

Green inhibition of copper corrosion by ammoides verticillata oil in 1M nitric acid: weight lossand Raman spectroscopic mapping studies

CHABANE,

DERGAL,

ATTAR

et al. 2023

Rev.Roum.Chim.

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The present study was designed to predict and analyze the effect of the essential oil of Ammoides verticillata (A.E.O) originating from the city of Souahlia (Tlemcen), which is located in northwest Algeria and its major compound on the inhibition of copper corrosion in 1 M HNO3. Gas chromatography coupled with mass spectrometry (GC-MS) revealed that carvacrol constitutes 67.89% of the essential oil. The study investigated the effect of concentration and temperature on copper corrosion and inhibitory efficiency using the gravimetric method. The findings indicate that A.E.O and carvacrol independently exhibit good inhibition properties on copper in 1 M HNO3, with the highest inhibitory efficiency at 1.5 g/L for A.E.O and 0.1 g/L for carvacrol, respectively. The adsorption of A.E.O and carvacrol on copper follows the Langmuir and Frumkin isotherm, respectively. The study also found competitive adsorption between iodide ions and A.E.O, as shown by the synergy parameter. Finally, Raman spectroscopy was used to analyze the immersed copper surface and mapping was used to characterize the surface layers in the different corrosive media used, which allowed us to develop a precise mapping of the corroded parts with the inhibited parts. This method will allow us to really see the inhibition effect of our materials.

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Electrochemical investigation of di-phosphonic acid on corrosion inhibition behavior of copper in hydrochloric acid medium

et al. 2021

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Synthesis of ethylene bis [(2-hydroxy-5,1,3-phenylene) bis methylene] tetraphosphonic acid and their anticorrosive effect on carbon steel in 3%NaCl solution

Cited by 9 publications

References 74 publications

Quantum Chemical Analysis of the Corrosion Inhibition Potential by Aliphatic Amines

Quantum Chemical Analysis of the Corrosion Inhibition Potential by Aliphatic Amines

Green inhibition of copper corrosion by ammoides verticillata oil in 1M nitric acid: weight lossand Raman spectroscopic mapping studies

Electrochemical investigation of di-phosphonic acid on corrosion inhibition behavior of copper in hydrochloric acid medium

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