THE INHIBITION MILD STEEL CORROSION IN PHOSPHORIC ACID SOLUTIONS BY 2- PHENYL-1-HYDRAZINE CARBOXAMIDE

In this work the effect of 2-phenyl-l-hydrazine carboxamide on the corrosion of mild steel in solutions of phosphoric acid (H3PO4 has been investigated in relation to the concentration of the inhibitor and acid, by weight loss, potentiodynamic polarization, and AC impedance (EIS) measurements. Resul...

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Autores principales: DADGARINEZHAD,A, BAGHAEI,F
Lenguaje:English
Publicado: Sociedad Chilena de Química 2009
Materias:
EIS
SEM
Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000300002
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spelling oai:scielo:S0717-970720090003000022010-03-17THE INHIBITION MILD STEEL CORROSION IN PHOSPHORIC ACID SOLUTIONS BY 2- PHENYL-1-HYDRAZINE CARBOXAMIDEDADGARINEZHAD,ABAGHAEI,F Potentiodynamic EIS Inhibitor SEM Corrosion In this work the effect of 2-phenyl-l-hydrazine carboxamide on the corrosion of mild steel in solutions of phosphoric acid (H3PO4 has been investigated in relation to the concentration of the inhibitor and acid, by weight loss, potentiodynamic polarization, and AC impedance (EIS) measurements. Results obtained revealed that this compound is a good mixed -type inhibitor. Increasing the acid concentration increased the metal corrosion but did not affect on the inhibitor efficiency. The optimum inhibitor concentration remained 150 ppm for various concentration of H3PO4. The surface morphologies of specimens after 1 hour of immersion in various solutions were studied by scanning electron microscopy (SEM).The Langmuir adsorption isotherm fitted well with the experimental data.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.54 n.3 20092009-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000300002en10.4067/S0717-97072009000300002
institution Scielo Chile
collection Scielo Chile
language English
topic Potentiodynamic
EIS
Inhibitor
SEM
Corrosion
spellingShingle Potentiodynamic
EIS
Inhibitor
SEM
Corrosion
DADGARINEZHAD,A
BAGHAEI,F
THE INHIBITION MILD STEEL CORROSION IN PHOSPHORIC ACID SOLUTIONS BY 2- PHENYL-1-HYDRAZINE CARBOXAMIDE
description In this work the effect of 2-phenyl-l-hydrazine carboxamide on the corrosion of mild steel in solutions of phosphoric acid (H3PO4 has been investigated in relation to the concentration of the inhibitor and acid, by weight loss, potentiodynamic polarization, and AC impedance (EIS) measurements. Results obtained revealed that this compound is a good mixed -type inhibitor. Increasing the acid concentration increased the metal corrosion but did not affect on the inhibitor efficiency. The optimum inhibitor concentration remained 150 ppm for various concentration of H3PO4. The surface morphologies of specimens after 1 hour of immersion in various solutions were studied by scanning electron microscopy (SEM).The Langmuir adsorption isotherm fitted well with the experimental data.
author DADGARINEZHAD,A
BAGHAEI,F
author_facet DADGARINEZHAD,A
BAGHAEI,F
author_sort DADGARINEZHAD,A
title THE INHIBITION MILD STEEL CORROSION IN PHOSPHORIC ACID SOLUTIONS BY 2- PHENYL-1-HYDRAZINE CARBOXAMIDE
title_short THE INHIBITION MILD STEEL CORROSION IN PHOSPHORIC ACID SOLUTIONS BY 2- PHENYL-1-HYDRAZINE CARBOXAMIDE
title_full THE INHIBITION MILD STEEL CORROSION IN PHOSPHORIC ACID SOLUTIONS BY 2- PHENYL-1-HYDRAZINE CARBOXAMIDE
title_fullStr THE INHIBITION MILD STEEL CORROSION IN PHOSPHORIC ACID SOLUTIONS BY 2- PHENYL-1-HYDRAZINE CARBOXAMIDE
title_full_unstemmed THE INHIBITION MILD STEEL CORROSION IN PHOSPHORIC ACID SOLUTIONS BY 2- PHENYL-1-HYDRAZINE CARBOXAMIDE
title_sort inhibition mild steel corrosion in phosphoric acid solutions by 2- phenyl-1-hydrazine carboxamide
publisher Sociedad Chilena de Química
publishDate 2009
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072009000300002
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