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Evaluation of extract of neem tree (Azadirachta indica) as inhibitor of corrosion in saline medium;
Avaliação do extrato da árvore de nim (Azadirachta indica) como inibidora de corrosão em meio salino

dc.contributor.authorMeza-Castellar, Pedro
dc.contributor.authorTejada-Tovar, Candelaria
dc.contributor.authorLoaiza-Fernández, Shirley
dc.contributor.authorVidales-Manrique, Alexander
dc.contributor.authorVillabona Ortiz, Ángel
dc.date.accessioned2018-04-13T21:18:20Z
dc.date.available2018-04-13T21:18:20Z
dc.date.created2017-12-31
dc.identifier.issn1692-3324
dc.identifier.urihttp://hdl.handle.net/11407/4688
dc.description.abstractSe evaluó la eficiencia de inhibición de la corrosión del extracto de las hojas de neem (Azadirachta indica) sobre acero al carbono y aluminio, en contacto por separado con una solución de cloruro de sodio y sulfato de sodio, ambas al 3,5% p/v. Se determinó la velocidad de corrosión, encontrando que el extracto de neem a menor concentración alcanzó mejores eficiencias sobre acero al carbono en cloruro de sodio con un 78% de eficiencia usando un 5% del extracto; en el caso del aluminio los valores de eficiencia alcanzados fueron bajos. Además, mediante el ajuste a la isoterma de Langmuir, se logró determinar que el extracto de neem fue adsorbido espontáneamente en la superficie del acero al carbono y permitió retardar el proceso corrosivo alcanzando eficiencias de inhibición del 90%. Los resultados de esta investigación permiten establecer que el extracto de neem tiene un alto potencial como inhibidor de la corrosión para ser aplicado en la industria como medio preventivo de esta.spa
dc.description.abstractThe inhibition efficiency of corrosion of the extract of neem leaves (Azadirachta indica) on carbon steel and aluminum was evaluated in contact with a sodium chloride and sodium sulfate solution, both at 3.5% p/v. Corrosion speed was determined and it was found that the Neem extract, at a lower concentration, reached better efficiencies on carbon steel in sodium chloride with 78% efficiency using 5% of the extract; concerning the aluminum, the efficiency values reached were low. Besides, through the adjustment to the Langmuir’s isotherms, it was possible to determine that the nem extract was adsorbed spontaneously on the surface of carbon steel and allowed to delay the corrosive process when reaching inhibition efficiencies of 90%. Results of this research allow establishing that the neem extract has a high potential as corrosion inhibitor to be applied in the industry as corrosion preventive medium.spa
dc.description.abstractFoi avaliada a eficiência de inibição de corrosão do extrato de folha de neem (Azadirachta indica) em aço carbono e alumínio, em contato separadamente com uma solução de cloreto de sódio e sulfato de sódio, ambos com 3,5% p / v. A taxa de corrosão foi determinada, encontrando que o extrato de neem em menor concentração alcançou melhores eficiências em aço carbono em cloreto de sódio com 78% de eficiência usando 5% do extracto; No caso do alumínio, os valores de eficiência alcançados foram baixos. Além disso, ao ajustar-se à isoterma de Langmuir, determinou-se que o extrato de neem foi adsorvido espontaneamente na superfície do aço carbono e permitiu retardar o processo corrosivo atingindo 90% de eficiências de inibição. Os resultados desta investigação permitem estabelecer que o extrato neem tem um alto potencial como um inibidor de corrosão a ser aplicado na indústria como um meio preventivo deste.spa
dc.format.extentp. 15-31spa
dc.format.mediumElectrónicospa
dc.format.mimetypeapplication/pdf
dc.language.isospa
dc.publisherUniversidad de Medellínspa
dc.relation.urihttp://revistas.udem.edu.co/index.php/ingenierias/article/view/1544
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/*
dc.sourceRevista Ingenierías Vol. 16, Núm. 31 (2017): Julio-Diciembre; 15-31spa
dc.subjectacero al carbonospa
dc.subjectaluminiospa
dc.subjectAzadirachta indicaspa
dc.subjectcorrosiónspa
dc.subjectinhibidorspa
dc.subjectcarbon steelspa
dc.subjectaluminumspa
dc.subjectAzadirachta indicaspa
dc.subjectcorrosionspa
dc.subjectinhibitorspa
dc.subjectaço-carbonospa
dc.subjectalumíniospa
dc.subjectAzadirachta indicaspa
dc.subjectcorrosãospa
dc.subjectinibidorspa
dc.titleEvaluación del extracto del árbol de neem (Azadirachta indica) como inhibidor de corrosión en medio salinospa
dc.titleEvaluation of extract of neem tree (Azadirachta indica) as inhibitor of corrosion in saline mediumspa
dc.titleAvaliação do extrato da árvore de nim (Azadirachta indica) como inibidora de corrosão em meio salinospa
dc.typeArticleeng
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.identifier.doihttps://doi.org/10.22395/rium.v16n31a1
dc.relation.citationvolume16
dc.relation.citationissue31
dc.relation.citationstartpage15
dc.relation.citationendpage31
dc.audienceComunidad Universidad de Medellínspa
dc.publisher.facultyFacultad de Ingenieríasspa
dc.coverageLat: 06 15 00 N  degrees minutes  Lat: 6.2500  decimal degreesLong: 075 36 00 W  degrees minutes  Long: -75.6000  decimal degreesspa
dc.publisher.placeMedellínspa
dc.creator.affiliationMeza-Castellar, Pedro; Fundación Universitaria Tecnológico Comfenalcospa
dc.creator.affiliationTejada-Tovar, Candelaria; Universidad de Cartagenaspa
dc.creator.affiliationLoaiza-Fernández, Shirley; Universidad de Cartagenaspa
dc.creator.affiliationVidales-Manrique, Alexander; Universidad de Cartagenaspa
dc.creator.affiliationVillabona Ortiz, Ángel; Universidad de Cartagenaspa
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dc.rights.creativecommonsAttribution-NonCommercial-ShareAlike 4.0 International*
dc.identifier.eissn2248-4094
dc.type.coarhttp://purl.org/coar/resource_type/c_6501
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.type.localArtículo científicospa
dc.type.driverinfo:eu-repo/semantics/article
dc.identifier.reponamereponame:Repositorio Institucional Universidad de Medellínspa
dc.identifier.repourlrepourl:https://repository.udem.edu.co/
dc.identifier.instnameinstname:Universidad de Medellínspa
dc.relation.ispartofjournalRevista Ingenierías Universidad de Medellínspa


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