Synthesized Schiff Base Acted as Eco-Friendly Inhibitor for Mild Steel in 1N H2SO4

Document Type : Research Article


1 Department of Chemical Engineering, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145 Shahreza, Iran

2 2Department of Chemical Engineering, Hamedan University of Technology, Hamedan 65155, Iran


2,2'-((1Z,1'Z)-(((propane-1,3-diylbis(oxy))bis(2,1-phenylene))bis(methanylylidene))bis(azanyly lidene))diethanol (2-PPM) was synthesized. This compound evaluated as novel corrosion inhibitor for mild steel in 1N H2SO4 solution. Polarization study showed that the compound was mixed type inhibitor. Electrochemical impedance study showed that the presence of this compound decreases the double layer capacitance and increases the charge transfer resistance.Weight loss study showed that, the corrosion inhibition property of 2-PPM on the external area of mild steel samples in the solution is mainly depends on the inhibitor concentration and immersion period. Further, the maximum protection efficiency obtained by weight loss technique was 65 %. SEM and AFM results fully support the chemical and electrochemical results.


Main Subjects

Volume 5, Issue 2 - Serial Number 2
March 2022
Pages 119-126
  • Receive Date: 08 February 2022
  • Revise Date: 24 March 2022
  • Accept Date: 25 March 2022
  • First Publish Date: 25 March 2022