New 3, 3'-((4-Aryl)‎ methylene)‎ bis (4-hydroxy-2H chromen 2-one)‎ (MHO)‎ derivatives as corrosion inhibitor

Abstract EN

New green natural particles as corrosion inhibitor namely, macromolecules wereincorporated beginning from 4-hydroxycoumarin with 4-nitrobenzaldehyde in thepresence of glacial acid (1) then synthesis with methyl bromoacetate after that thiscompound (2) used to synthesis of 2, 2'-(3, 3'-((4-nitrophenyl)methylene)bis(2-oxo-2Hchromene-4, 3 diyl))bis(oxy)diacetohydrazide (3) when was refluxed with hydrazinehydrate when compound(2) refluxed with HCl to obtain compound (4) and tested all thesynthesis compounds on mild steel (MS) in 1 M HCl, 1M H2SO4 media by a weight lossmethod and identification of the surface technique employeescanning/electron/microscope (SEM) studies.

The weight loss investigation demonstratedthat inhibition performances have been improved via concentration raising of inhibitor.

Tosupport our results scanning electron microscopy was employed to clarify the surface ofthe MS with and without synthesis compounds in 1.0 M HCl and1.0M H2SO4 media