STUDIES ON THE EFFECT OF TWO SALEN SCHIFF-BASES ON THE CORROSION OF LOW ALLOY STEEL IN 1M HCL

The corrosion inhibition by two synthesized Schiff -bases of bis-(2-hydroxy-3-methoxy)-l,6-diaminohexane salicyladimine and bis- (2-hydroxy)-1,6-diaminohexane salicyladimine was investigated by weight loss, Tafel polarization and AC impedance on low alloy steel in 1M HC1. The results show that these...

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Autores principales: RAVARI,FATEMEH BAGHAEI, DADGARINEZHAD,ATHAREH, SHEKHSHOAEI,IRAN
Lenguaje:English
Publicado: Sociedad Chilena de Química 2010
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000300011
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spelling oai:scielo:S0717-970720100003000112011-01-25STUDIES ON THE EFFECT OF TWO SALEN SCHIFF-BASES ON THE CORROSION OF LOW ALLOY STEEL IN 1M HCLRAVARI,FATEMEH BAGHAEIDADGARINEZHAD,ATHAREHSHEKHSHOAEI,IRAN Low alloy steel Schiff-bases Langmuir Inhibition Efficiency The corrosion inhibition by two synthesized Schiff -bases of bis-(2-hydroxy-3-methoxy)-l,6-diaminohexane salicyladimine and bis- (2-hydroxy)-1,6-diaminohexane salicyladimine was investigated by weight loss, Tafel polarization and AC impedance on low alloy steel in 1M HC1. The results show that these Schiff -bases act as anodic type inhibitors. The inhibition efficiency obtained from all method employed are in good agreement. Changes in impedance parameters (Rt and Cdt ) are indicative of adsorption of Schiff-bases onthe metal surface leading to the formation of protective film. Two Schiff-bases are found to adsorb on low alloy steel surface according to the Langmuir adsorption isotherm and thermodynamics calculations revealed that bis-(2-hydroxy-3-methoxy)-1,6-diaminohexane salicyladimine had larger adsorption constant and more negative free energy of adsorption than bis-(2-hydroxy)-1,6-diaminohexane salicyladimine.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.55 n.3 20102010-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000300011en10.4067/S0717-97072010000300011
institution Scielo Chile
collection Scielo Chile
language English
topic Low alloy steel
Schiff-bases
Langmuir
Inhibition Efficiency
spellingShingle Low alloy steel
Schiff-bases
Langmuir
Inhibition Efficiency
RAVARI,FATEMEH BAGHAEI
DADGARINEZHAD,ATHAREH
SHEKHSHOAEI,IRAN
STUDIES ON THE EFFECT OF TWO SALEN SCHIFF-BASES ON THE CORROSION OF LOW ALLOY STEEL IN 1M HCL
description The corrosion inhibition by two synthesized Schiff -bases of bis-(2-hydroxy-3-methoxy)-l,6-diaminohexane salicyladimine and bis- (2-hydroxy)-1,6-diaminohexane salicyladimine was investigated by weight loss, Tafel polarization and AC impedance on low alloy steel in 1M HC1. The results show that these Schiff -bases act as anodic type inhibitors. The inhibition efficiency obtained from all method employed are in good agreement. Changes in impedance parameters (Rt and Cdt ) are indicative of adsorption of Schiff-bases onthe metal surface leading to the formation of protective film. Two Schiff-bases are found to adsorb on low alloy steel surface according to the Langmuir adsorption isotherm and thermodynamics calculations revealed that bis-(2-hydroxy-3-methoxy)-1,6-diaminohexane salicyladimine had larger adsorption constant and more negative free energy of adsorption than bis-(2-hydroxy)-1,6-diaminohexane salicyladimine.
author RAVARI,FATEMEH BAGHAEI
DADGARINEZHAD,ATHAREH
SHEKHSHOAEI,IRAN
author_facet RAVARI,FATEMEH BAGHAEI
DADGARINEZHAD,ATHAREH
SHEKHSHOAEI,IRAN
author_sort RAVARI,FATEMEH BAGHAEI
title STUDIES ON THE EFFECT OF TWO SALEN SCHIFF-BASES ON THE CORROSION OF LOW ALLOY STEEL IN 1M HCL
title_short STUDIES ON THE EFFECT OF TWO SALEN SCHIFF-BASES ON THE CORROSION OF LOW ALLOY STEEL IN 1M HCL
title_full STUDIES ON THE EFFECT OF TWO SALEN SCHIFF-BASES ON THE CORROSION OF LOW ALLOY STEEL IN 1M HCL
title_fullStr STUDIES ON THE EFFECT OF TWO SALEN SCHIFF-BASES ON THE CORROSION OF LOW ALLOY STEEL IN 1M HCL
title_full_unstemmed STUDIES ON THE EFFECT OF TWO SALEN SCHIFF-BASES ON THE CORROSION OF LOW ALLOY STEEL IN 1M HCL
title_sort studies on the effect of two salen schiff-bases on the corrosion of low alloy steel in 1m hcl
publisher Sociedad Chilena de Química
publishDate 2010
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000300011
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AT dadgarinezhadathareh studiesontheeffectoftwosalenschiffbasesonthecorrosionoflowalloysteelin1mhcl
AT shekhshoaeiiran studiesontheeffectoftwosalenschiffbasesonthecorrosionoflowalloysteelin1mhcl
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