Production of chloride and hypochlorite for analytical purposes by sonochemical degradation of organochlorines
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , |
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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Journal of the Brazilian Chemical Society (Online) |
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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 |
_version_ |
1750318166577250304 |