Aplicação e modificação química da sílica gel obtida de areia

Detalhes bibliográficos
Autor(a) principal: Prado,Alexandre G. S.
Data de Publicação: 2005
Outros Autores: Faria,Elaine A., Padilha,Pedro M.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000300030
Resumo: The silica gel was obtained from sand and its surface was modified with POCl3 to produce Si-Cl bonds on the silica surface. Ethylenediamine was covalently bonded onto the chlorinated silica surface. The adsorption of the chlorides of divalent cobalt, nickel and copper was qualitatively studied to show that the bonding of ethylenediamine onto the silica gel surface produces a solid base capable of chelating metal ions from solution. The experiments illustrate the extraction of silica gel, its reactivity, the development of modified surfaces and its application in removing metal ions from water and are deigned for undergraduate inorganic chemistry laboratories.
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spelling Aplicação e modificação química da sílica gel obtida de areiasilicateaching experimentadsorptionThe silica gel was obtained from sand and its surface was modified with POCl3 to produce Si-Cl bonds on the silica surface. Ethylenediamine was covalently bonded onto the chlorinated silica surface. The adsorption of the chlorides of divalent cobalt, nickel and copper was qualitatively studied to show that the bonding of ethylenediamine onto the silica gel surface produces a solid base capable of chelating metal ions from solution. The experiments illustrate the extraction of silica gel, its reactivity, the development of modified surfaces and its application in removing metal ions from water and are deigned for undergraduate inorganic chemistry laboratories.Sociedade Brasileira de Química2005-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000300030Química Nova v.28 n.3 2005reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422005000300030info:eu-repo/semantics/openAccessPrado,Alexandre G. S.Faria,Elaine A.Padilha,Pedro M.por2005-06-16T00:00:00Zoai:scielo:S0100-40422005000300030Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2005-06-16T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Aplicação e modificação química da sílica gel obtida de areia
title Aplicação e modificação química da sílica gel obtida de areia
spellingShingle Aplicação e modificação química da sílica gel obtida de areia
Prado,Alexandre G. S.
silica
teaching experiment
adsorption
title_short Aplicação e modificação química da sílica gel obtida de areia
title_full Aplicação e modificação química da sílica gel obtida de areia
title_fullStr Aplicação e modificação química da sílica gel obtida de areia
title_full_unstemmed Aplicação e modificação química da sílica gel obtida de areia
title_sort Aplicação e modificação química da sílica gel obtida de areia
author Prado,Alexandre G. S.
author_facet Prado,Alexandre G. S.
Faria,Elaine A.
Padilha,Pedro M.
author_role author
author2 Faria,Elaine A.
Padilha,Pedro M.
author2_role author
author
dc.contributor.author.fl_str_mv Prado,Alexandre G. S.
Faria,Elaine A.
Padilha,Pedro M.
dc.subject.por.fl_str_mv silica
teaching experiment
adsorption
topic silica
teaching experiment
adsorption
description The silica gel was obtained from sand and its surface was modified with POCl3 to produce Si-Cl bonds on the silica surface. Ethylenediamine was covalently bonded onto the chlorinated silica surface. The adsorption of the chlorides of divalent cobalt, nickel and copper was qualitatively studied to show that the bonding of ethylenediamine onto the silica gel surface produces a solid base capable of chelating metal ions from solution. The experiments illustrate the extraction of silica gel, its reactivity, the development of modified surfaces and its application in removing metal ions from water and are deigned for undergraduate inorganic chemistry laboratories.
publishDate 2005
dc.date.none.fl_str_mv 2005-06-01
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=S0100-40422005000300030
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000300030
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422005000300030
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.28 n.3 2005
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
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