Physicochemical Characterization and Corrosion Inhibition Potential of Ficus Benjamina (FB) Gum for Aluminum in 0.1 M H2SO4
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042014000300001 |
Resumo: | Examination of the physical (colour, odour, pH, solubility in various solvents) and chemical (GCMS and FTIR) characteristics of Ficus benjamina gum revealed that the gum is yellowish in colour, mildly acidic and ionic in nature. Major constituents of the gums were found to be sucrose and d-glucose, which constituted 60.92 % of their chemical constituents, while various carboxylic acids [(albietic acid (1.00%), hexadecanoic acid (4.41 %), 9-octadecanoic acid (1.00 %), octadecanoic acid (3.01 %), oleic acid (0.10 %), octadecanoic acid (9.12 %) and 6,13-pentacenequinone (20.43 %)] accounted for the remaining constituents. Functional groups identified in the gum were found to be those typical for other carbohydrates. From the knowledge of the chemical structures of compounds that constitute the gum, the corrosion inhibition potentials of the gum were ascertained and from weight loss analysis, the gum was found to be an active inhibitor against the corrosion of aluminum in solutions of tetraoxosulphate (VI) acid. The gum acted as an adsorption inhibitor that favours the mechanism of chemical adsorption and supported the Frumkin and Dubinin-Radushkevich adsorption models. |
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Physicochemical Characterization and Corrosion Inhibition Potential of Ficus Benjamina (FB) Gum for Aluminum in 0.1 M H2SO4Ficus benjamina gumphysicochemical characteristicscorrosion inhibitionExamination of the physical (colour, odour, pH, solubility in various solvents) and chemical (GCMS and FTIR) characteristics of Ficus benjamina gum revealed that the gum is yellowish in colour, mildly acidic and ionic in nature. Major constituents of the gums were found to be sucrose and d-glucose, which constituted 60.92 % of their chemical constituents, while various carboxylic acids [(albietic acid (1.00%), hexadecanoic acid (4.41 %), 9-octadecanoic acid (1.00 %), octadecanoic acid (3.01 %), oleic acid (0.10 %), octadecanoic acid (9.12 %) and 6,13-pentacenequinone (20.43 %)] accounted for the remaining constituents. Functional groups identified in the gum were found to be those typical for other carbohydrates. From the knowledge of the chemical structures of compounds that constitute the gum, the corrosion inhibition potentials of the gum were ascertained and from weight loss analysis, the gum was found to be an active inhibitor against the corrosion of aluminum in solutions of tetraoxosulphate (VI) acid. The gum acted as an adsorption inhibitor that favours the mechanism of chemical adsorption and supported the Frumkin and Dubinin-Radushkevich adsorption models.Sociedade Portuguesa de Electroquímica2014-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042014000300001Portugaliae Electrochimica Acta v.32 n.3 2014reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042014000300001Eddy,Nnabuk O.Ameh,Paul O.Odiongenyi,Anduang O.info:eu-repo/semantics/openAccess2024-02-06T17:07:15Zoai:scielo:S0872-19042014000300001Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:15.392187Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Physicochemical Characterization and Corrosion Inhibition Potential of Ficus Benjamina (FB) Gum for Aluminum in 0.1 M H2SO4 |
title |
Physicochemical Characterization and Corrosion Inhibition Potential of Ficus Benjamina (FB) Gum for Aluminum in 0.1 M H2SO4 |
spellingShingle |
Physicochemical Characterization and Corrosion Inhibition Potential of Ficus Benjamina (FB) Gum for Aluminum in 0.1 M H2SO4 Eddy,Nnabuk O. Ficus benjamina gum physicochemical characteristics corrosion inhibition |
title_short |
Physicochemical Characterization and Corrosion Inhibition Potential of Ficus Benjamina (FB) Gum for Aluminum in 0.1 M H2SO4 |
title_full |
Physicochemical Characterization and Corrosion Inhibition Potential of Ficus Benjamina (FB) Gum for Aluminum in 0.1 M H2SO4 |
title_fullStr |
Physicochemical Characterization and Corrosion Inhibition Potential of Ficus Benjamina (FB) Gum for Aluminum in 0.1 M H2SO4 |
title_full_unstemmed |
Physicochemical Characterization and Corrosion Inhibition Potential of Ficus Benjamina (FB) Gum for Aluminum in 0.1 M H2SO4 |
title_sort |
Physicochemical Characterization and Corrosion Inhibition Potential of Ficus Benjamina (FB) Gum for Aluminum in 0.1 M H2SO4 |
author |
Eddy,Nnabuk O. |
author_facet |
Eddy,Nnabuk O. Ameh,Paul O. Odiongenyi,Anduang O. |
author_role |
author |
author2 |
Ameh,Paul O. Odiongenyi,Anduang O. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Eddy,Nnabuk O. Ameh,Paul O. Odiongenyi,Anduang O. |
dc.subject.por.fl_str_mv |
Ficus benjamina gum physicochemical characteristics corrosion inhibition |
topic |
Ficus benjamina gum physicochemical characteristics corrosion inhibition |
description |
Examination of the physical (colour, odour, pH, solubility in various solvents) and chemical (GCMS and FTIR) characteristics of Ficus benjamina gum revealed that the gum is yellowish in colour, mildly acidic and ionic in nature. Major constituents of the gums were found to be sucrose and d-glucose, which constituted 60.92 % of their chemical constituents, while various carboxylic acids [(albietic acid (1.00%), hexadecanoic acid (4.41 %), 9-octadecanoic acid (1.00 %), octadecanoic acid (3.01 %), oleic acid (0.10 %), octadecanoic acid (9.12 %) and 6,13-pentacenequinone (20.43 %)] accounted for the remaining constituents. Functional groups identified in the gum were found to be those typical for other carbohydrates. From the knowledge of the chemical structures of compounds that constitute the gum, the corrosion inhibition potentials of the gum were ascertained and from weight loss analysis, the gum was found to be an active inhibitor against the corrosion of aluminum in solutions of tetraoxosulphate (VI) acid. The gum acted as an adsorption inhibitor that favours the mechanism of chemical adsorption and supported the Frumkin and Dubinin-Radushkevich adsorption models. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-05-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042014000300001 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042014000300001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042014000300001 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Portuguesa de Electroquímica |
publisher.none.fl_str_mv |
Sociedade Portuguesa de Electroquímica |
dc.source.none.fl_str_mv |
Portugaliae Electrochimica Acta v.32 n.3 2014 reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137291037310976 |