The inhibitive effect of some schiff base symmetric heterocyclic compounds on the corrosion of mild steel in 1M HCl

Abstract

In This work, we have tried to study the inhibitive effect of two Schiff base named (1E, 2E)-1,2-bis(furan-2-ylmethylene)hydrazine( PP1) , and (1E, 2E)-1,2-bis(pyridine -2-ylmethylene)hydrazine ( PP2). by using gravimetric and electrochemical methods, furthermore, quantum chemical calculations is an effective process to compare theoretical with experimental results, using DFT/B3LYP method with 6.31G (d,p) as basic set. Results show some good efficiencies for those compounds as inhibitors against corrosion of mild steel in HCl 1M medium reach some satisfied value in 10 -3 M.