|
|||||
|
|
Corrosion inhibition of iron in hydrochloric acid using pyrazole |
|
| Authors: | S.S. Abdel-Rehim K.F. Khaled N.A. Al-Mobarak |
| Affiliation: | 1. Ain Shams University, Faculty of Science, Chemistry Department, Abbassia, Cairo, Egypt;2. Electrochemistry Research Laboratory, Ain Shams University, Faculty of Education, Chemistry Department, Roxy, Cairo, Egypt;3. Materials and Corrosion Laboratory, Taif University, Faculty of Science, Chemistry Department, Taif, Hawiya 888, Saudi Arabia;4. Faculty of Science, Girls Section, Chemistry Department, Princess Nora bint Abdulrahman University, Riyadh, Saudi Arabia |
| Abstract: | The corrosion and corrosion inhibition of iron in HCl solutions in the absence and presence of pyrazole (PA) were investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Changes in impedance parameters (Rct and Cdl) were indicative of the adsorption of PA on the iron surface. The adsorption of PA is found to obey Langmuir adsorption isotherm. The study suggests that this compound is an anodic inhibitor. |
| Keywords: | Corrosion Inhibition Iron Hydrochloric acid Pyrazole |
| 本文献已被 ScienceDirect 等数据库收录！ | |