Evaluation of the Sapindus saponaria L extract as an acid medium corrosion inhibitor

Detalhes bibliográficos
Autor(a) principal: Alencar,Mauro Filho Alves de
Data de Publicação: 2022
Outros Autores: Alves,Rafaella da Silva Gomes, Cardoso,Jorge Luiz, Moura,Milena Jacinto da Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Matéria (Rio de Janeiro. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762022000200227
Resumo: ABSTRACT Copper and its alloys have characteristics of electrical and thermal conductivity and good toughness. As copper has a positive value for standard reduction potential, it does not react with water, but with oxidizing acids. A useful method to protect metals and alloys is the addition of corrosion inhibiting substances in the solution, which has a high inhibition efficiency.However, many inhibitors are undesirable because of their toxicity to the environment and their high cost. Studies have been developed in order to investigate plant extracts as corrosion inhibitors. The sapindus saponaria L plant may have some technological interest in relation to corrosive processes.For this purpose, the techniques of potentiodynamic polarization of cyclic and linear scanning, chronoamperiometry, gravimetric by mass loss immersion, flame atomic absorption spectrometry and scanning electron microscopy were used. In cyclic voltammetry with the cathodic region extract, there is some interaction with the species in solution. From the polarization curves, linear voltammetry, the efficiency was 63.6%, where the extract behaved as a mixed type inhibitor. Determining the values of the corrosion rate in the absence and in the presence of the extract, the value of 59.8% of inhibitory efficiency in terms of mass loss immersion and 80.0% in terms of copper ions content in solution from flame atomic absorption were found.The micrographic images show that in the presence of the extract, on the copper surface there were no significant changes and the formation of corrosion products did not occur. It is concluded that the extract of sapindus saponaria L is a reasonable inhibitor of copper corrosion in HNO3 1 mol/L.
id RLAM-1_829e5c2ae4747d2e31367cd0b9351fda
oai_identifier_str oai:scielo:S1517-70762022000200227
network_acronym_str RLAM-1
network_name_str Matéria (Rio de Janeiro. Online)
repository_id_str
spelling Evaluation of the Sapindus saponaria L extract as an acid medium corrosion inhibitorSapindus saponaria LCopperCorrosionAcidicMediumABSTRACT Copper and its alloys have characteristics of electrical and thermal conductivity and good toughness. As copper has a positive value for standard reduction potential, it does not react with water, but with oxidizing acids. A useful method to protect metals and alloys is the addition of corrosion inhibiting substances in the solution, which has a high inhibition efficiency.However, many inhibitors are undesirable because of their toxicity to the environment and their high cost. Studies have been developed in order to investigate plant extracts as corrosion inhibitors. The sapindus saponaria L plant may have some technological interest in relation to corrosive processes.For this purpose, the techniques of potentiodynamic polarization of cyclic and linear scanning, chronoamperiometry, gravimetric by mass loss immersion, flame atomic absorption spectrometry and scanning electron microscopy were used. In cyclic voltammetry with the cathodic region extract, there is some interaction with the species in solution. From the polarization curves, linear voltammetry, the efficiency was 63.6%, where the extract behaved as a mixed type inhibitor. Determining the values of the corrosion rate in the absence and in the presence of the extract, the value of 59.8% of inhibitory efficiency in terms of mass loss immersion and 80.0% in terms of copper ions content in solution from flame atomic absorption were found.The micrographic images show that in the presence of the extract, on the copper surface there were no significant changes and the formation of corrosion products did not occur. It is concluded that the extract of sapindus saponaria L is a reasonable inhibitor of copper corrosion in HNO3 1 mol/L.Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiroem cooperação com a Associação Brasileira do Hidrogênio, ABH22022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762022000200227Matéria (Rio de Janeiro) v.27 n.2 2022reponame:Matéria (Rio de Janeiro. Online)instname:Matéria (Rio de Janeiro. Online)instacron:RLAM10.1590/s1517-707620220002.1378info:eu-repo/semantics/openAccessAlencar,Mauro Filho Alves deAlves,Rafaella da Silva GomesCardoso,Jorge LuizMoura,Milena Jacinto da Silvaeng2022-12-05T00:00:00Zoai:scielo:S1517-70762022000200227Revistahttp://www.materia.coppe.ufrj.br/https://old.scielo.br/oai/scielo-oai.php||materia@labh2.coppe.ufrj.br1517-70761517-7076opendoar:2022-12-05T00:00Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)false
dc.title.none.fl_str_mv Evaluation of the Sapindus saponaria L extract as an acid medium corrosion inhibitor
title Evaluation of the Sapindus saponaria L extract as an acid medium corrosion inhibitor
spellingShingle Evaluation of the Sapindus saponaria L extract as an acid medium corrosion inhibitor
Alencar,Mauro Filho Alves de
Sapindus saponaria L
Copper
Corrosion
AcidicMedium
title_short Evaluation of the Sapindus saponaria L extract as an acid medium corrosion inhibitor
title_full Evaluation of the Sapindus saponaria L extract as an acid medium corrosion inhibitor
title_fullStr Evaluation of the Sapindus saponaria L extract as an acid medium corrosion inhibitor
title_full_unstemmed Evaluation of the Sapindus saponaria L extract as an acid medium corrosion inhibitor
title_sort Evaluation of the Sapindus saponaria L extract as an acid medium corrosion inhibitor
author Alencar,Mauro Filho Alves de
author_facet Alencar,Mauro Filho Alves de
Alves,Rafaella da Silva Gomes
Cardoso,Jorge Luiz
Moura,Milena Jacinto da Silva
author_role author
author2 Alves,Rafaella da Silva Gomes
Cardoso,Jorge Luiz
Moura,Milena Jacinto da Silva
author2_role author
author
author
dc.contributor.author.fl_str_mv Alencar,Mauro Filho Alves de
Alves,Rafaella da Silva Gomes
Cardoso,Jorge Luiz
Moura,Milena Jacinto da Silva
dc.subject.por.fl_str_mv Sapindus saponaria L
Copper
Corrosion
AcidicMedium
topic Sapindus saponaria L
Copper
Corrosion
AcidicMedium
description ABSTRACT Copper and its alloys have characteristics of electrical and thermal conductivity and good toughness. As copper has a positive value for standard reduction potential, it does not react with water, but with oxidizing acids. A useful method to protect metals and alloys is the addition of corrosion inhibiting substances in the solution, which has a high inhibition efficiency.However, many inhibitors are undesirable because of their toxicity to the environment and their high cost. Studies have been developed in order to investigate plant extracts as corrosion inhibitors. The sapindus saponaria L plant may have some technological interest in relation to corrosive processes.For this purpose, the techniques of potentiodynamic polarization of cyclic and linear scanning, chronoamperiometry, gravimetric by mass loss immersion, flame atomic absorption spectrometry and scanning electron microscopy were used. In cyclic voltammetry with the cathodic region extract, there is some interaction with the species in solution. From the polarization curves, linear voltammetry, the efficiency was 63.6%, where the extract behaved as a mixed type inhibitor. Determining the values of the corrosion rate in the absence and in the presence of the extract, the value of 59.8% of inhibitory efficiency in terms of mass loss immersion and 80.0% in terms of copper ions content in solution from flame atomic absorption were found.The micrographic images show that in the presence of the extract, on the copper surface there were no significant changes and the formation of corrosion products did not occur. It is concluded that the extract of sapindus saponaria L is a reasonable inhibitor of copper corrosion in HNO3 1 mol/L.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762022000200227
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762022000200227
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1517-707620220002.1378
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 Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
publisher.none.fl_str_mv Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
dc.source.none.fl_str_mv Matéria (Rio de Janeiro) v.27 n.2 2022
reponame:Matéria (Rio de Janeiro. Online)
instname:Matéria (Rio de Janeiro. Online)
instacron:RLAM
instname_str Matéria (Rio de Janeiro. Online)
instacron_str RLAM
institution RLAM
reponame_str Matéria (Rio de Janeiro. Online)
collection Matéria (Rio de Janeiro. Online)
repository.name.fl_str_mv Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)
repository.mail.fl_str_mv ||materia@labh2.coppe.ufrj.br
_version_ 1752126695163297792