Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents

Autores
Tolosa, E.; Frontini, María Alejandra; Yohai del Cerro, Lucía; Vazquez, Marcela Vivian; Valcarce, María Beatriz
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effect of biphosphate ions as potential inhibiting agents for constructed steel is analyzed in heavily carbonated solution (HCS) simulating concrete ([HCO3-] +[CO3=]) = 0.315 mol L-1). Three conditions are analyzed, always keeping pH=9: 1) a highly carbonated pore simulating solution (HCS), 2) HCS contaminated with NaCl 0.1 mol/L, and 3) HCS contaminated with NaCl 0.1 mol/L and incorporating biphosphate ions as inhibiting agent. In this last condition, three inhibitor dosages are tested, where the ratio [HPO42-] /[Cl-] is 0.2, 0.6, and 1. The results are compared to previous studies in solutions containing ten times less carbonate content. Several electrochemical and surface techniques are used to correlate inhibiting efficiency of biphosphate ions to dosage. The incorporation of biphosphate ions as inhibitors improves the resistance against localized corrosion. The passivating film is composed of a mixture of phosphates and oxides, mainly Fe(III) species. The inhibition efficiency is sensible to the content of biphosphate and carbonate ions in solution. The optimal dosage of Na2HPO4 is 0.06 mol L-1, where the inhibition efficiency evaluated over 6 weeks is higher than 99%. The benefit of using Na2HPO4 in proper concentrations as an efficient corrosion inhibitor is demonstrated for the experimental conditions under study.
Fil: Tolosa, E.. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Frontini, María Alejandra. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Yohai del Cerro, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Vazquez, Marcela Vivian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Valcarce, María Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Materia
corrosion
corrosion inhibition
corrosion protection
passivity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/233345
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/233345
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting AgentsTolosa, E.Frontini, María AlejandraYohai del Cerro, LucíaVazquez, Marcela VivianValcarce, María Beatrizcorrosioncorrosion inhibitioncorrosion protectionpassivityhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The effect of biphosphate ions as potential inhibiting agents for constructed steel is analyzed in heavily carbonated solution (HCS) simulating concrete ([HCO3-] +[CO3=]) = 0.315 mol L-1). Three conditions are analyzed, always keeping pH=9: 1) a highly carbonated pore simulating solution (HCS), 2) HCS contaminated with NaCl 0.1 mol/L, and 3) HCS contaminated with NaCl 0.1 mol/L and incorporating biphosphate ions as inhibiting agent. In this last condition, three inhibitor dosages are tested, where the ratio [HPO42-] /[Cl-] is 0.2, 0.6, and 1. The results are compared to previous studies in solutions containing ten times less carbonate content. Several electrochemical and surface techniques are used to correlate inhibiting efficiency of biphosphate ions to dosage. The incorporation of biphosphate ions as inhibitors improves the resistance against localized corrosion. The passivating film is composed of a mixture of phosphates and oxides, mainly Fe(III) species. The inhibition efficiency is sensible to the content of biphosphate and carbonate ions in solution. The optimal dosage of Na2HPO4 is 0.06 mol L-1, where the inhibition efficiency evaluated over 6 weeks is higher than 99%. The benefit of using Na2HPO4 in proper concentrations as an efficient corrosion inhibitor is demonstrated for the experimental conditions under study.Fil: Tolosa, E.. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Frontini, María Alejandra. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Yohai del Cerro, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Vazquez, Marcela Vivian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Valcarce, María Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaIOP Publishing2023-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/233345Tolosa, E.; Frontini, María Alejandra; Yohai del Cerro, Lucía; Vazquez, Marcela Vivian; Valcarce, María Beatriz; Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents; IOP Publishing; Journal of the Electrochemical Society; 170; 3; 2-2023; 1-410013-46511945-7111CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1149/1945-7111/acbc4einfo:eu-repo/semantics/altIdentifier/doi/10.1149/1945-7111/acbc4einfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:24:47Zoai:ri.conicet.gov.ar:11336/233345instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:24:47.313CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents
title Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents
spellingShingle Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents
Tolosa, E.
corrosion
corrosion inhibition
corrosion protection
passivity
title_short Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents
title_full Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents
title_fullStr Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents
title_full_unstemmed Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents
title_sort Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents
dc.creator.none.fl_str_mv Tolosa, E.
Frontini, María Alejandra
Yohai del Cerro, Lucía
Vazquez, Marcela Vivian
Valcarce, María Beatriz
author Tolosa, E.
author_facet Tolosa, E.
Frontini, María Alejandra
Yohai del Cerro, Lucía
Vazquez, Marcela Vivian
Valcarce, María Beatriz
author_role author
author2 Frontini, María Alejandra
Yohai del Cerro, Lucía
Vazquez, Marcela Vivian
Valcarce, María Beatriz
author2_role author
author
author
author
dc.subject.none.fl_str_mv corrosion
corrosion inhibition
corrosion protection
passivity
topic corrosion
corrosion inhibition
corrosion protection
passivity
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The effect of biphosphate ions as potential inhibiting agents for constructed steel is analyzed in heavily carbonated solution (HCS) simulating concrete ([HCO3-] +[CO3=]) = 0.315 mol L-1). Three conditions are analyzed, always keeping pH=9: 1) a highly carbonated pore simulating solution (HCS), 2) HCS contaminated with NaCl 0.1 mol/L, and 3) HCS contaminated with NaCl 0.1 mol/L and incorporating biphosphate ions as inhibiting agent. In this last condition, three inhibitor dosages are tested, where the ratio [HPO42-] /[Cl-] is 0.2, 0.6, and 1. The results are compared to previous studies in solutions containing ten times less carbonate content. Several electrochemical and surface techniques are used to correlate inhibiting efficiency of biphosphate ions to dosage. The incorporation of biphosphate ions as inhibitors improves the resistance against localized corrosion. The passivating film is composed of a mixture of phosphates and oxides, mainly Fe(III) species. The inhibition efficiency is sensible to the content of biphosphate and carbonate ions in solution. The optimal dosage of Na2HPO4 is 0.06 mol L-1, where the inhibition efficiency evaluated over 6 weeks is higher than 99%. The benefit of using Na2HPO4 in proper concentrations as an efficient corrosion inhibitor is demonstrated for the experimental conditions under study.
Fil: Tolosa, E.. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Frontini, María Alejandra. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Yohai del Cerro, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Vazquez, Marcela Vivian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Valcarce, María Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
description The effect of biphosphate ions as potential inhibiting agents for constructed steel is analyzed in heavily carbonated solution (HCS) simulating concrete ([HCO3-] +[CO3=]) = 0.315 mol L-1). Three conditions are analyzed, always keeping pH=9: 1) a highly carbonated pore simulating solution (HCS), 2) HCS contaminated with NaCl 0.1 mol/L, and 3) HCS contaminated with NaCl 0.1 mol/L and incorporating biphosphate ions as inhibiting agent. In this last condition, three inhibitor dosages are tested, where the ratio [HPO42-] /[Cl-] is 0.2, 0.6, and 1. The results are compared to previous studies in solutions containing ten times less carbonate content. Several electrochemical and surface techniques are used to correlate inhibiting efficiency of biphosphate ions to dosage. The incorporation of biphosphate ions as inhibitors improves the resistance against localized corrosion. The passivating film is composed of a mixture of phosphates and oxides, mainly Fe(III) species. The inhibition efficiency is sensible to the content of biphosphate and carbonate ions in solution. The optimal dosage of Na2HPO4 is 0.06 mol L-1, where the inhibition efficiency evaluated over 6 weeks is higher than 99%. The benefit of using Na2HPO4 in proper concentrations as an efficient corrosion inhibitor is demonstrated for the experimental conditions under study.
publishDate 2023
dc.date.none.fl_str_mv 2023-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/233345
Tolosa, E.; Frontini, María Alejandra; Yohai del Cerro, Lucía; Vazquez, Marcela Vivian; Valcarce, María Beatriz; Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents; IOP Publishing; Journal of the Electrochemical Society; 170; 3; 2-2023; 1-41
0013-4651
1945-7111
CONICET Digital
CONICET
url http://hdl.handle.net/11336/233345
identifier_str_mv Tolosa, E.; Frontini, María Alejandra; Yohai del Cerro, Lucía; Vazquez, Marcela Vivian; Valcarce, María Beatriz; Steel Corrosion in Highly Carbonated Solutions Mitigated Using Biphosphate Ions as Inhibiting Agents; IOP Publishing; Journal of the Electrochemical Society; 170; 3; 2-2023; 1-41
0013-4651
1945-7111
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1149/1945-7111/acbc4e
info:eu-repo/semantics/altIdentifier/doi/10.1149/1945-7111/acbc4e
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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