Corrosion mitigation of carbon steel in acidic media using a newly synthesized 3-(dimethyl amino) propyl-4-hydroxy benzoate: Experimental and Theoretical investigations
Gamal, S., elbasiony, N., Eltabei, A., Zahran, F., mahdy, G. (2025). Corrosion mitigation of carbon steel in acidic media using a newly synthesized 3-(dimethyl amino) propyl-4-hydroxy benzoate: Experimental and Theoretical investigations. EKB Journal Management System, (), -. doi: 10.21608/ejchem.2025.406153.12081
Sosanna Atef Gamal; nasser mohamed elbasiony; Aziza Elsayed Eltabei; Fouad Zahran; gamal Ahmed mahdy. "Corrosion mitigation of carbon steel in acidic media using a newly synthesized 3-(dimethyl amino) propyl-4-hydroxy benzoate: Experimental and Theoretical investigations". EKB Journal Management System, , , 2025, -. doi: 10.21608/ejchem.2025.406153.12081
Gamal, S., elbasiony, N., Eltabei, A., Zahran, F., mahdy, G. (2025). 'Corrosion mitigation of carbon steel in acidic media using a newly synthesized 3-(dimethyl amino) propyl-4-hydroxy benzoate: Experimental and Theoretical investigations', EKB Journal Management System, (), pp. -. doi: 10.21608/ejchem.2025.406153.12081
Gamal, S., elbasiony, N., Eltabei, A., Zahran, F., mahdy, G. Corrosion mitigation of carbon steel in acidic media using a newly synthesized 3-(dimethyl amino) propyl-4-hydroxy benzoate: Experimental and Theoretical investigations. EKB Journal Management System, 2025; (): -. doi: 10.21608/ejchem.2025.406153.12081

Corrosion mitigation of carbon steel in acidic media using a newly synthesized 3-(dimethyl amino) propyl-4-hydroxy benzoate: Experimental and Theoretical investigations

Egyptian Journal of Chemistry
Articles in Press, Accepted Manuscript, Available Online from 02 October 2025
Document Type: Original Article
DOI: 10.21608/ejchem.2025.406153.12081
Authors
Sosanna Atef Gamal* 1; nasser mohamed elbasiony2; Aziza Elsayed Eltabei3; Fouad Zahran4; gamal Ahmed mahdy4
1Chemistry Department, Faculty of Science, Helwan University, Helwan, Cairo
2Egyptian Petroleum Research Institute, Nasr City 11727, Cairo, Egypt
3Egyptian Petroleum Research Institute (EPRI)
4Chemistry Department, Faculty of Science, Helwan University
Abstract
Oil and gas process faces a large dilemma during descaling job. So, addition of acid corrosion inhibitor plays a vital role to mitigate the downhole well tube during the acid job. We studied the performance role of the synthesized 3-(dimethyl amino) propyl-4-hydroxy benzoate (APHB) as a corrosion inhibitor for the CS. The chemical structure of APHB confirmed by FT-IR and 1HNMR. The electrochemical corrosion affinity of CS in 1M HCl in absence and presence of different concentration of APHB has been studied by applying electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) techniques at room temperature. APHB suppressed CS corrosion rate by 85.37% at 1x10-4 M. APHB formed adsorbed layer on CS surface increasing the CS dissolution resistance and decreasing the corrosion current density to 140 µA/cm2. PDP data classify APHB as a hybrid anticorrosive material. Adsorption of APHB is chemically adsorbed on CS and the adsorption followed Langmuir adsorption isotherm model. The scan electron microscopy (SEM) confirmed the protection affinity of APHB via formation smoother treated CS surface compared to the untreated counter one. The adsorption affinity of APHB is studied theoretically based on density function theory (DFT). The adsorption process of APHB in mimicked via monte Carlo (MC) and molecular dynamic (MD) simulations
Keywords
Corrosion; SEM; Langmiur adsoption isotherm; CS; DFT; MC
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