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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Sociedad Chilena de Química
2009
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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 |
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Scielo Chile |
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Scielo Chile |
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English |
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Potentiodynamic EIS Inhibitor SEM Corrosion |
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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 |
work_keys_str_mv |
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