Potentiometric titration of methylmercury solutions - a standardization procedure

Detalhes bibliográficos
Autor(a) principal: Rollemberg, Maria do Carmo Ezequiel
Data de Publicação: 2008
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta scientiarum. Technology (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3119
Resumo: Methylmercury solutions in chloroform (1000 mgHg/L) were titrated potentiometrically, using saturated calomel and silver electrodes, and potassium iodide aqueous solution (5 mmols/L) as the titrant. For comparison, mercuric ion and methylmercury aqueous solutions were also titrated, under the same conditions. The proposed procedure showed that the standardization of organomercurial solutions is possible, with great exactness, avoiding any oxidative pre-treatment.
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spelling Potentiometric titration of methylmercury solutions - a standardization procedureTitulação potenciométrica de soluções de metilmercúrio – um procedimento para padronizaçãopadronizaçãosoluções de metilmercúriotitulação potenciométrica1.06.00.00-0 QuímicaMethylmercury solutions in chloroform (1000 mgHg/L) were titrated potentiometrically, using saturated calomel and silver electrodes, and potassium iodide aqueous solution (5 mmols/L) as the titrant. For comparison, mercuric ion and methylmercury aqueous solutions were also titrated, under the same conditions. The proposed procedure showed that the standardization of organomercurial solutions is possible, with great exactness, avoiding any oxidative pre-treatment.Foram realizadas titulações potenciométricas de soluções de metilmercúrio em clorofórmio (1000 mgHg/L), usando eletrodos de prata e de calomelano, e tendo soluções aquosas de iodeto de potássio como titulante (5 mmoles/L). Nas mesmas condições, soluções aquosas do íon mercúrico e de metilmercúrio foram, também, tituladas. O procedimento proposto mostra ser possível a padronização de soluções de organomercuriais, com grande exatidão, sem a necessidade de etapas preliminares de oxidação.Universidade Estadual De Maringá2008-05-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/311910.4025/actascitechnol.v20i0.3119Acta Scientiarum. Technology; Vol 20 (1998); 415-417Acta Scientiarum. Technology; v. 20 (1998); 415-4171806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3119/2316Rollemberg, Maria do Carmo Ezequielinfo:eu-repo/semantics/openAccess2024-05-17T13:02:57Zoai:periodicos.uem.br/ojs:article/3119Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:02:57Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Potentiometric titration of methylmercury solutions - a standardization procedure
Titulação potenciométrica de soluções de metilmercúrio – um procedimento para padronização
title Potentiometric titration of methylmercury solutions - a standardization procedure
spellingShingle Potentiometric titration of methylmercury solutions - a standardization procedure
Rollemberg, Maria do Carmo Ezequiel
padronização
soluções de metilmercúrio
titulação potenciométrica
1.06.00.00-0 Química
title_short Potentiometric titration of methylmercury solutions - a standardization procedure
title_full Potentiometric titration of methylmercury solutions - a standardization procedure
title_fullStr Potentiometric titration of methylmercury solutions - a standardization procedure
title_full_unstemmed Potentiometric titration of methylmercury solutions - a standardization procedure
title_sort Potentiometric titration of methylmercury solutions - a standardization procedure
author Rollemberg, Maria do Carmo Ezequiel
author_facet Rollemberg, Maria do Carmo Ezequiel
author_role author
dc.contributor.author.fl_str_mv Rollemberg, Maria do Carmo Ezequiel
dc.subject.por.fl_str_mv padronização
soluções de metilmercúrio
titulação potenciométrica
1.06.00.00-0 Química
topic padronização
soluções de metilmercúrio
titulação potenciométrica
1.06.00.00-0 Química
description Methylmercury solutions in chloroform (1000 mgHg/L) were titrated potentiometrically, using saturated calomel and silver electrodes, and potassium iodide aqueous solution (5 mmols/L) as the titrant. For comparison, mercuric ion and methylmercury aqueous solutions were also titrated, under the same conditions. The proposed procedure showed that the standardization of organomercurial solutions is possible, with great exactness, avoiding any oxidative pre-treatment.
publishDate 2008
dc.date.none.fl_str_mv 2008-05-13
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3119
10.4025/actascitechnol.v20i0.3119
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3119
identifier_str_mv 10.4025/actascitechnol.v20i0.3119
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/3119/2316
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Technology; Vol 20 (1998); 415-417
Acta Scientiarum. Technology; v. 20 (1998); 415-417
1806-2563
1807-8664
reponame:Acta scientiarum. Technology (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta scientiarum. Technology (Online)
collection Acta scientiarum. Technology (Online)
repository.name.fl_str_mv Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actatech@uem.br
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