Estudio del coeficiente de reparto de ácidos carboxílicos grasos en sistemas modificados heptano/agua
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | spa |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600024 |
Resumo: | The use of fatty acids (FAs) as amphiphiles is very important because they have a behaving similar to surfactants. The formulation for the preferential partition of these species was studied by varying the amount of salt at constant acid concentration. As the salt concentration increases, a Winsor I→III→II transition is observed for all the systems studied. Furthermore, the electrolyte concentration required to obtain the optimum formulation varies inversely with the chain length of the acid. The partition coefficient of the surfactant allows one to obtain thermodynamic information on the acid transfer process between the phases of the system. |
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Estudio del coeficiente de reparto de ácidos carboxílicos grasos en sistemas modificados heptano/aguafatty acidsformulation variablespartition coefficientThe use of fatty acids (FAs) as amphiphiles is very important because they have a behaving similar to surfactants. The formulation for the preferential partition of these species was studied by varying the amount of salt at constant acid concentration. As the salt concentration increases, a Winsor I→III→II transition is observed for all the systems studied. Furthermore, the electrolyte concentration required to obtain the optimum formulation varies inversely with the chain length of the acid. The partition coefficient of the surfactant allows one to obtain thermodynamic information on the acid transfer process between the phases of the system.Sociedade Brasileira de Química2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600024Química Nova v.35 n.6 2012reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422012000600024info:eu-repo/semantics/openAccessBravo,BélgicaCárdenas,BetzhyChávez,GersonDelgado,NacaridCáceres,AnaYsambertt,FredyMárquez,Nelsonspa2012-07-25T00:00:00Zoai:scielo:S0100-40422012000600024Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2012-07-25T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Estudio del coeficiente de reparto de ácidos carboxílicos grasos en sistemas modificados heptano/agua |
title |
Estudio del coeficiente de reparto de ácidos carboxílicos grasos en sistemas modificados heptano/agua |
spellingShingle |
Estudio del coeficiente de reparto de ácidos carboxílicos grasos en sistemas modificados heptano/agua Bravo,Bélgica fatty acids formulation variables partition coefficient |
title_short |
Estudio del coeficiente de reparto de ácidos carboxílicos grasos en sistemas modificados heptano/agua |
title_full |
Estudio del coeficiente de reparto de ácidos carboxílicos grasos en sistemas modificados heptano/agua |
title_fullStr |
Estudio del coeficiente de reparto de ácidos carboxílicos grasos en sistemas modificados heptano/agua |
title_full_unstemmed |
Estudio del coeficiente de reparto de ácidos carboxílicos grasos en sistemas modificados heptano/agua |
title_sort |
Estudio del coeficiente de reparto de ácidos carboxílicos grasos en sistemas modificados heptano/agua |
author |
Bravo,Bélgica |
author_facet |
Bravo,Bélgica Cárdenas,Betzhy Chávez,Gerson Delgado,Nacarid Cáceres,Ana Ysambertt,Fredy Márquez,Nelson |
author_role |
author |
author2 |
Cárdenas,Betzhy Chávez,Gerson Delgado,Nacarid Cáceres,Ana Ysambertt,Fredy Márquez,Nelson |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Bravo,Bélgica Cárdenas,Betzhy Chávez,Gerson Delgado,Nacarid Cáceres,Ana Ysambertt,Fredy Márquez,Nelson |
dc.subject.por.fl_str_mv |
fatty acids formulation variables partition coefficient |
topic |
fatty acids formulation variables partition coefficient |
description |
The use of fatty acids (FAs) as amphiphiles is very important because they have a behaving similar to surfactants. The formulation for the preferential partition of these species was studied by varying the amount of salt at constant acid concentration. As the salt concentration increases, a Winsor I→III→II transition is observed for all the systems studied. Furthermore, the electrolyte concentration required to obtain the optimum formulation varies inversely with the chain length of the acid. The partition coefficient of the surfactant allows one to obtain thermodynamic information on the acid transfer process between the phases of the system. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-01-01 |
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=S0100-40422012000600024 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600024 |
dc.language.iso.fl_str_mv |
spa |
language |
spa |
dc.relation.none.fl_str_mv |
10.1590/S0100-40422012000600024 |
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 Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Química Nova v.35 n.6 2012 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318113560199168 |