Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorines

Detalhes bibliográficos
Autor(a) principal: Korn,Mauro
Data de Publicação: 2005
Outros Autores: Acevedo,Maria Soledad M. S. F., Borges,Sivanildo S., Lima,Jose L. F. C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000600016
Resumo: This work was aimed at highlighting the potentialities of the reagent generation by ultrasonic irradiation to produce chloride and hypochlorite solutions for analytical purposes derived from the residues of organochlorines of laboratory effluents. The dependence between the production of chloride obtained from the sonication of effluents containing organochlorines and the irradiation time was evaluated for CCl4, CHCl3, CH2Cl2 and Thiamethoxam®. It was observed that under saturation conditions the production of chloride was highest for CHCl3. Additionally, good precision related to the sonochemical generation of chloride was achieved (RSD < 10%). The extent of sonochemical generation of hypochlorite was also evaluated in the presence of different NaOH concentrations. The hypochlorite generated by the degradation of CCl4 residues was monitored by the reference Berthelot method for NH4+ determination. The results obtained with hypochlorite solution sonochemically generated for different NH4+ concentration were compared with the conventional reagent and no significant difference (95% confidence level) was found.
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spelling Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorinesultrasonic irradiationsonochemical degradationreagent generationchloromethaneshypochlorite generationThis work was aimed at highlighting the potentialities of the reagent generation by ultrasonic irradiation to produce chloride and hypochlorite solutions for analytical purposes derived from the residues of organochlorines of laboratory effluents. The dependence between the production of chloride obtained from the sonication of effluents containing organochlorines and the irradiation time was evaluated for CCl4, CHCl3, CH2Cl2 and Thiamethoxam®. It was observed that under saturation conditions the production of chloride was highest for CHCl3. Additionally, good precision related to the sonochemical generation of chloride was achieved (RSD < 10%). The extent of sonochemical generation of hypochlorite was also evaluated in the presence of different NaOH concentrations. The hypochlorite generated by the degradation of CCl4 residues was monitored by the reference Berthelot method for NH4+ determination. The results obtained with hypochlorite solution sonochemically generated for different NH4+ concentration were compared with the conventional reagent and no significant difference (95% confidence level) was found.Sociedade Brasileira de Química2005-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000600016Journal of the Brazilian Chemical Society v.16 n.5 2005reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532005000600016info:eu-repo/semantics/openAccessKorn,MauroAcevedo,Maria Soledad M. S. F.Borges,Sivanildo S.Lima,Jose L. F. C.eng2005-11-09T00:00:00Zoai:scielo:S0103-50532005000600016Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2005-11-09T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorines
title Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorines
spellingShingle Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorines
Korn,Mauro
ultrasonic irradiation
sonochemical degradation
reagent generation
chloromethanes
hypochlorite generation
title_short Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorines
title_full Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorines
title_fullStr Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorines
title_full_unstemmed Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorines
title_sort Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorines
author Korn,Mauro
author_facet Korn,Mauro
Acevedo,Maria Soledad M. S. F.
Borges,Sivanildo S.
Lima,Jose L. F. C.
author_role author
author2 Acevedo,Maria Soledad M. S. F.
Borges,Sivanildo S.
Lima,Jose L. F. C.
author2_role author
author
author
dc.contributor.author.fl_str_mv Korn,Mauro
Acevedo,Maria Soledad M. S. F.
Borges,Sivanildo S.
Lima,Jose L. F. C.
dc.subject.por.fl_str_mv ultrasonic irradiation
sonochemical degradation
reagent generation
chloromethanes
hypochlorite generation
topic ultrasonic irradiation
sonochemical degradation
reagent generation
chloromethanes
hypochlorite generation
description This work was aimed at highlighting the potentialities of the reagent generation by ultrasonic irradiation to produce chloride and hypochlorite solutions for analytical purposes derived from the residues of organochlorines of laboratory effluents. The dependence between the production of chloride obtained from the sonication of effluents containing organochlorines and the irradiation time was evaluated for CCl4, CHCl3, CH2Cl2 and Thiamethoxam®. It was observed that under saturation conditions the production of chloride was highest for CHCl3. Additionally, good precision related to the sonochemical generation of chloride was achieved (RSD < 10%). The extent of sonochemical generation of hypochlorite was also evaluated in the presence of different NaOH concentrations. The hypochlorite generated by the degradation of CCl4 residues was monitored by the reference Berthelot method for NH4+ determination. The results obtained with hypochlorite solution sonochemically generated for different NH4+ concentration were compared with the conventional reagent and no significant difference (95% confidence level) was found.
publishDate 2005
dc.date.none.fl_str_mv 2005-10-01
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=S0103-50532005000600016
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000600016
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532005000600016
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 Journal of the Brazilian Chemical Society v.16 n.5 2005
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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