Geração sonoquímica de oxidantes em solução aquosa saturada de tetracloreto de carbono

Detalhes bibliográficos
Autor(a) principal: Borges, Sivanildo da Silva
Data de Publicação: 2002
Outros Autores: Korn, Mauro
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/4843
Resumo: p. 558-562.
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spelling Borges, Sivanildo da SilvaKorn, MauroBorges, Sivanildo da SilvaKorn, Mauro2011-12-14T10:57:17Z2011-12-14T10:57:17Z2002-070100-4042http://www.repositorio.ufba.br/ri/handle/ri/4843v. 25, n. 4.p. 558-562.SONOCHEMICAL PRODUCTION OF OXIDIZING SPECIES IN WATER SOLUTION SATURATED WITH CARBON TETRACHLORIDE. In this work the CCl4 degradation in aqueous solution by sonication with 40 kHz commercial ultrasonic bath was investigated. Sonochemical degradation of CCl4 occur by the cleavage of C-Cl bond into the cavitation bubbles. Oxidation reactions and the pH decreasing in the bulk solution during sonication were attributed to chlorine radicals produced by CCl4 sonolysis, leading to increase the chloride concentration. The formation of oxidizing agents was evaluated employing I- and Fe2+ ion solutions, converted to I2 and HIO, and Fe3+, respectively. The amount of chloride and hydronium ions produced after 3 min of irradiation was 11.52 and 12.19 mmol, respectively, suggesting that the same reaction was involved to produce these ions. Fe2+ oxidation and the pH variation were monitored to estimate chlorine radical formation rate in the presence (0.107 mmol s-1) and absence (0.092 mmol s-1) of metallic ion during the first minute of sonication.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2011-12-14T10:57:17Z No. of bitstreams: 1 10529.pdf: 153003 bytes, checksum: 89717f3673377df100760ddf3db87a9f (MD5)Made available in DSpace on 2011-12-14T10:57:17Z (GMT). No. of bitstreams: 1 10529.pdf: 153003 bytes, checksum: 89717f3673377df100760ddf3db87a9f (MD5) Previous issue date: 2002-07São Paulohttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422002000400009&lng=en&nrm=isoreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBASonochemical reactionsOxidizing species generationCarbon tetrachloride sonolysisGeração sonoquímica de oxidantes em solução aquosa saturada de tetracloreto de carbonoQuímica Novainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleporinfo:eu-repo/semantics/openAccessORIGINAL10529.pdf10529.pdfapplication/pdf153003https://repositorio.ufba.br/bitstream/ri/4843/1/10529.pdf89717f3673377df100760ddf3db87a9fMD51LICENSElicense.txtlicense.txttext/plain1809https://repositorio.ufba.br/bitstream/ri/4843/2/license.txt8bb3e3eb871f5854a9ec419f68651b60MD52TEXT10529.pdf.txt10529.pdf.txtExtracted texttext/plain26934https://repositorio.ufba.br/bitstream/ri/4843/3/10529.pdf.txt0ce8ee7218017df9be2ef5538121d031MD53ri/48432022-08-08 13:17:39.197oai:repositorio.ufba.br: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ório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-08-08T16:17:39Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Geração sonoquímica de oxidantes em solução aquosa saturada de tetracloreto de carbono
dc.title.alternative.pt_BR.fl_str_mv Química Nova
title Geração sonoquímica de oxidantes em solução aquosa saturada de tetracloreto de carbono
spellingShingle Geração sonoquímica de oxidantes em solução aquosa saturada de tetracloreto de carbono
Borges, Sivanildo da Silva
Sonochemical reactions
Oxidizing species generation
Carbon tetrachloride sonolysis
title_short Geração sonoquímica de oxidantes em solução aquosa saturada de tetracloreto de carbono
title_full Geração sonoquímica de oxidantes em solução aquosa saturada de tetracloreto de carbono
title_fullStr Geração sonoquímica de oxidantes em solução aquosa saturada de tetracloreto de carbono
title_full_unstemmed Geração sonoquímica de oxidantes em solução aquosa saturada de tetracloreto de carbono
title_sort Geração sonoquímica de oxidantes em solução aquosa saturada de tetracloreto de carbono
author Borges, Sivanildo da Silva
author_facet Borges, Sivanildo da Silva
Korn, Mauro
author_role author
author2 Korn, Mauro
author2_role author
dc.contributor.author.fl_str_mv Borges, Sivanildo da Silva
Korn, Mauro
Borges, Sivanildo da Silva
Korn, Mauro
dc.subject.por.fl_str_mv Sonochemical reactions
Oxidizing species generation
Carbon tetrachloride sonolysis
topic Sonochemical reactions
Oxidizing species generation
Carbon tetrachloride sonolysis
description p. 558-562.
publishDate 2002
dc.date.issued.fl_str_mv 2002-07
dc.date.accessioned.fl_str_mv 2011-12-14T10:57:17Z
dc.date.available.fl_str_mv 2011-12-14T10:57:17Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/4843
dc.identifier.issn.none.fl_str_mv 0100-4042
dc.identifier.number.pt_BR.fl_str_mv v. 25, n. 4.
identifier_str_mv 0100-4042
v. 25, n. 4.
url http://www.repositorio.ufba.br/ri/handle/ri/4843
dc.language.iso.fl_str_mv por
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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reponame_str Repositório Institucional da UFBA
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