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<identifier>oai:HAL:hal-01094042v1</identifier>
<datestamp>2018-01-11</datestamp>
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<setSpec>subject:chim</setSpec>
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<setSpec>collection:CIRAD</setSpec>
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<publisher>HAL CCSD</publisher>
<title lang=en>Inhibition effect of alkaloids extract from Annona Squamosa plant on the corrosion of C38 steel in normal hydrochloric acid medium</title>
<creator>Lebrini, M.</creator>
<creator>Robert, Florent</creator>
<creator>Roos, C.</creator>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>International journal of electrochemical science</source>
<identifier>hal-01094042</identifier>
<identifier>https://hal-agroparistech.archives-ouvertes.fr/hal-01094042</identifier>
<source>https://hal-agroparistech.archives-ouvertes.fr/hal-01094042</source>
<source>International journal of electrochemical science, 2010, pp.1698-1712</source>
<language>en</language>
<subject lang=en>Plant extract</subject>
<subject lang=en>corrosion inhibitors</subject>
<subject lang=en>C38 steel</subject>
<subject lang=en>acidic media</subject>
<subject lang=en>adsorption</subject>
<subject>[CHIM] Chemical Sciences</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>In this work, an alkaloids extract from Annona squamosa plant have been studied as possible corrosion inhibitor for C38 steel in molar hydrochloric acid (1 M HCl). Potentiodynamic polarization and AC impedance methods have been used. The corrosion inhibition efficiency increases on increasing plant extract concentration. Polarisation studies showed that Annona squamosa extract was mixed-type inhibitor in 1 M HCl. The inhibition efficiency of Annona squamosa extract was temperaturedependent and its addition led to an increase of the activation corrosion energy revealing a physical adsorption between the extract and the metal surface. The adsorption of the Annona squamosa extractfollowed Langmuir’s adsorption isotherm. The inhibitive effect of Annona squamosa is ascribed to the presence of organic compounds in the extract. The examined extract is considered as non-cytotoxic substance.</description>
<date>2010</date>
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