During the past years, there has been an increasingly important emphasis on the study of corrosioninhibitors because of their performance in inhibiting the dissolution of metals in various corrosivemediums, making research into the use of environmentally safer substances a goal for corrosionscientists. On this wise, the anti-corrosive performance of (E)-N'-(4-chlorobenzylidene)-2-(6-methoxynaphthalen-2-yl) propanehydrazide (CBMP) and ((E)-2-(6-methoxynaphthalen-2-yl)-N'-(4-methylbenzylidene) propanehydrazide (MMBH) for mild steel (MS) in 1.0 M HCl has been studiedemploying electrochemical methods, weight loss and SEM/EDX examinations. An increase in theconcentration of the inhibitor up to an optimized level of 5×10-3 M has significantly improved thecorrosion rate (icorr) values. The preferential protective response of MMBH against corrosion has beeninvestigated in a range of temperature settings of 303 K-333 K. It is strongly implied by the results ofthe PDP experiments that the selected inhibitors acted as mixed-type inhibitors with a morepronounced cathodic nature. The adsorption of both compounds follows the Langmuir isotherm.SEM/EDX confirmed the good inhibition performance of tested compounds.
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