Naturaleza y formación de los complejos intermedios del sistema SnCl2 - NH4OH - H2O
Autor(a) principal: | |
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Data de Publicação: | 2001 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | spa |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392001000400008 |
Resumo: | Current technological advances require that the raw materials used in the production of electric devices and structural materials present special characteristics of chemical purity, size distribution and morphology of the particles. Tin oxides are mainly used as gas sensor and as surges suppressor (varistor). To achieve an appropriate control on the mentioned characteristics, we use the method of controlled precipitation (MPC), which allowed us to obtain certain characteristics in other oxides. When using the MPC, it is necessary to determine the complexes that are formed and their nature. In this work we present results of study on the formation of complexes in the system SnCl2 - NH4OH - H2O. To study the system during the constant addition of the base (NH4OH) to the solution of tin salt, we used potentiometric and conductimetric titration. For the determination of the nature of the formed tin complexes, the solid phase was characterized using X-ray diffraction (XRD) while the liquid phase was analyzed by UV-visible and infrared spectroscopies. |
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Naturaleza y formación de los complejos intermedios del sistema SnCl2 - NH4OH - H2Otin oxidesynthesiscontrolled precipitationintermediate complexesCurrent technological advances require that the raw materials used in the production of electric devices and structural materials present special characteristics of chemical purity, size distribution and morphology of the particles. Tin oxides are mainly used as gas sensor and as surges suppressor (varistor). To achieve an appropriate control on the mentioned characteristics, we use the method of controlled precipitation (MPC), which allowed us to obtain certain characteristics in other oxides. When using the MPC, it is necessary to determine the complexes that are formed and their nature. In this work we present results of study on the formation of complexes in the system SnCl2 - NH4OH - H2O. To study the system during the constant addition of the base (NH4OH) to the solution of tin salt, we used potentiometric and conductimetric titration. For the determination of the nature of the formed tin complexes, the solid phase was characterized using X-ray diffraction (XRD) while the liquid phase was analyzed by UV-visible and infrared spectroscopies.ABM, ABC, ABPol2001-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392001000400008Materials Research v.4 n.4 2001reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392001000400008info:eu-repo/semantics/openAccessOrtiz,A.Mendoza,M.Rodríguez Paez,J.E.spa2002-01-09T00:00:00Zoai:scielo:S1516-14392001000400008Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2002-01-09T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Naturaleza y formación de los complejos intermedios del sistema SnCl2 - NH4OH - H2O |
title |
Naturaleza y formación de los complejos intermedios del sistema SnCl2 - NH4OH - H2O |
spellingShingle |
Naturaleza y formación de los complejos intermedios del sistema SnCl2 - NH4OH - H2O Ortiz,A. tin oxide synthesis controlled precipitation intermediate complexes |
title_short |
Naturaleza y formación de los complejos intermedios del sistema SnCl2 - NH4OH - H2O |
title_full |
Naturaleza y formación de los complejos intermedios del sistema SnCl2 - NH4OH - H2O |
title_fullStr |
Naturaleza y formación de los complejos intermedios del sistema SnCl2 - NH4OH - H2O |
title_full_unstemmed |
Naturaleza y formación de los complejos intermedios del sistema SnCl2 - NH4OH - H2O |
title_sort |
Naturaleza y formación de los complejos intermedios del sistema SnCl2 - NH4OH - H2O |
author |
Ortiz,A. |
author_facet |
Ortiz,A. Mendoza,M. Rodríguez Paez,J.E. |
author_role |
author |
author2 |
Mendoza,M. Rodríguez Paez,J.E. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Ortiz,A. Mendoza,M. Rodríguez Paez,J.E. |
dc.subject.por.fl_str_mv |
tin oxide synthesis controlled precipitation intermediate complexes |
topic |
tin oxide synthesis controlled precipitation intermediate complexes |
description |
Current technological advances require that the raw materials used in the production of electric devices and structural materials present special characteristics of chemical purity, size distribution and morphology of the particles. Tin oxides are mainly used as gas sensor and as surges suppressor (varistor). To achieve an appropriate control on the mentioned characteristics, we use the method of controlled precipitation (MPC), which allowed us to obtain certain characteristics in other oxides. When using the MPC, it is necessary to determine the complexes that are formed and their nature. In this work we present results of study on the formation of complexes in the system SnCl2 - NH4OH - H2O. To study the system during the constant addition of the base (NH4OH) to the solution of tin salt, we used potentiometric and conductimetric titration. For the determination of the nature of the formed tin complexes, the solid phase was characterized using X-ray diffraction (XRD) while the liquid phase was analyzed by UV-visible and infrared spectroscopies. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-10-01 |
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=S1516-14392001000400008 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392001000400008 |
dc.language.iso.fl_str_mv |
spa |
language |
spa |
dc.relation.none.fl_str_mv |
10.1590/S1516-14392001000400008 |
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 |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.4 n.4 2001 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212656914366464 |