Uma estratégia adaptada para síntese de magnetita

Detalhes bibliográficos
Autor(a) principal: Santana,Genilson Pereira
Data de Publicação: 2008
Outros Autores: Ramos,Alex Martins, Fabris,José Domingos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000200043
Resumo: Chemical reactions in the solid state are often not included in undergraduate chemistry curricula, due to requirements for special laboratory facilities such as ovens and precision weighing balances. This work aims to describe novel and relatively simple magnetite chemical syntheses in dry medium, which could also be used as an alternative for freshmen chemistry experiments. The proposed reaction was carried out in a muffle furnace by heating (i) a sol-gel preparation and (ii) natural hematite, under nitrogen atmosphere at 400 ºC. The synthesized magnetite was characterized with powder X-ray diffraction and Mössbauer spectroscopy. Results show that magnetite samples have chemical properties as well as crystalline structure quite similar to those of standard natural magnetite.
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spelling Uma estratégia adaptada para síntese de magnetitairon oxidesMössbauer spectroscopyX-ray diffractionChemical reactions in the solid state are often not included in undergraduate chemistry curricula, due to requirements for special laboratory facilities such as ovens and precision weighing balances. This work aims to describe novel and relatively simple magnetite chemical syntheses in dry medium, which could also be used as an alternative for freshmen chemistry experiments. The proposed reaction was carried out in a muffle furnace by heating (i) a sol-gel preparation and (ii) natural hematite, under nitrogen atmosphere at 400 ºC. The synthesized magnetite was characterized with powder X-ray diffraction and Mössbauer spectroscopy. Results show that magnetite samples have chemical properties as well as crystalline structure quite similar to those of standard natural magnetite.Sociedade Brasileira de Química2008-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000200043Química Nova v.31 n.2 2008reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422008000200043info:eu-repo/semantics/openAccessSantana,Genilson PereiraRamos,Alex MartinsFabris,José Domingospor2009-09-25T00:00:00Zoai:scielo:S0100-40422008000200043Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2009-09-25T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Uma estratégia adaptada para síntese de magnetita
title Uma estratégia adaptada para síntese de magnetita
spellingShingle Uma estratégia adaptada para síntese de magnetita
Santana,Genilson Pereira
iron oxides
Mössbauer spectroscopy
X-ray diffraction
title_short Uma estratégia adaptada para síntese de magnetita
title_full Uma estratégia adaptada para síntese de magnetita
title_fullStr Uma estratégia adaptada para síntese de magnetita
title_full_unstemmed Uma estratégia adaptada para síntese de magnetita
title_sort Uma estratégia adaptada para síntese de magnetita
author Santana,Genilson Pereira
author_facet Santana,Genilson Pereira
Ramos,Alex Martins
Fabris,José Domingos
author_role author
author2 Ramos,Alex Martins
Fabris,José Domingos
author2_role author
author
dc.contributor.author.fl_str_mv Santana,Genilson Pereira
Ramos,Alex Martins
Fabris,José Domingos
dc.subject.por.fl_str_mv iron oxides
Mössbauer spectroscopy
X-ray diffraction
topic iron oxides
Mössbauer spectroscopy
X-ray diffraction
description Chemical reactions in the solid state are often not included in undergraduate chemistry curricula, due to requirements for special laboratory facilities such as ovens and precision weighing balances. This work aims to describe novel and relatively simple magnetite chemical syntheses in dry medium, which could also be used as an alternative for freshmen chemistry experiments. The proposed reaction was carried out in a muffle furnace by heating (i) a sol-gel preparation and (ii) natural hematite, under nitrogen atmosphere at 400 ºC. The synthesized magnetite was characterized with powder X-ray diffraction and Mössbauer spectroscopy. Results show that magnetite samples have chemical properties as well as crystalline structure quite similar to those of standard natural magnetite.
publishDate 2008
dc.date.none.fl_str_mv 2008-01-01
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=S0100-40422008000200043
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000200043
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422008000200043
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.31 n.2 2008
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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