Steel corrosion resistance with new 2-mercaptopyrimidin-4-ol derivatives | ||||
| Egyptian Journal of Chemistry | ||||
| Volume 67, Issue 11, November 2024, Page 277-288 PDF (1.19 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2024.310848.10163 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Adel A.-H. Abdel-Rahman 1; Aly Abel-Maaboud Aly2; Asmaa Said Hassan  3
| ||||
| 1Chemistry Department, Faculty of Science, Menoufia University, Shebin El-Koam, EGYPT. | ||||
| 2Chemistry Department, Faculty of Science, Benha University, Benha, Egypt | ||||
| 3Department of Chemistry, Faculty of Science, Menoufia University, Shebin El-Koam, | ||||
| Abstract | ||||
| Three six-amino pyrimidine derivative chemicals were recently identified; P(3), 2-mercaptopyrimidin-4-ol, P(5), (E)-6-(benzylideneamino)-2-mercaptopyrimidin-4-ol, and P(6), (E)-Ethyl-2-{[(4-(benzylideneamino)-6-hydroxypyrimidin-2yl) thio]}acetate. FTIR and 1H NMR provided confirmation of the synthesized substance's chemical structure. The newly synthesized cationic pyrimidine derivatives were investigated for their potential as carbon steel corrosion inhibitors in acidic solutions via impedance and potentio-dynamic polarization spectra. The inhibitory efficiencies derived from the several methods used are largely in line with one another. The Tefel findings demonstrated that the compounds effectively prevented carbon steel from corroding under the examined corrosive conditions, with an inhibition efficacy of 78.21, 78.74 and 81.37%, for P(3), P(5) and P(6), respectively. Using the Frumkin isotherm, it was determined that these chemicals' inhibitory impact was related to their adsorption on carbon steel surface. The surface of the carbon steel was inspected with SEM. | ||||
| Keywords | ||||
| Corrosion inhibitors; Carbon steel; Pyrimidine derivatives; Potentiodynamic polarization and Electrochemical impedance | ||||
|
Statistics Article View: 39 PDF Download: 32 |
||||
