Utilization of Experimental Design as an Approach to Optimize Inhibition Efficiency of a Pyridazine Derivative Against Mild Steel Corrosion in 1 M Hydrochloric Acid

The aim of this manuscript was to optimize the IE(%) of a pyridazine derivative (MDP) for hindering MS corrosion in a 1 M HCl solution.To identify the most influential parameters affecting CI, a study was conducted using a Doehlert matrix and Nemrod software.Based on preliminary knowledge, three parameters (Ct from MDP, IT and T) were selected.IE(%) was evaluated by analyzing PDP intensity-potential curves and interpreting the obtained results.The novelty of this research stems from the methodical application of DoE methodology to optimize CI, which offers notable advantages such as reduced test requirements, and the ability to discern interactions between factors.The findings revealed a remarkable IE(%) of 96%, under optimal conditions: Ct from MDP of 0.3 x 10 -3 mol/L, IT of 12 h and T of 303.15 K.