Influence of NO2 and metal ions on oxidation of aqueous-phase S(IV) in atmospheric concentrations
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFBA |
Texto Completo: | http://www.repositorio.ufba.br/ri/handle/ri/6130 |
Resumo: | p. 279-290 |
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Martins, Cláudia RochaAlves, Janete J. F.Carvalho, Wanessa B. D.Cardoso, Cristiane S. C.Andrade, Jailson Bittencourt deMartins, Cláudia RochaAlves, Janete J. F.Carvalho, Wanessa B. D.Cardoso, Cristiane S. C.Andrade, Jailson Bittencourt de2012-06-14T11:36:50Z2012-06-14T11:36:50Z20080001-3765http://www.repositorio.ufba.br/ri/handle/ri/6130v. 80, n. 2p. 279-290An investigation was made of the influence of atmospheric concentrations (15 or 130 ppbv) of NO2 on the aqueous-phase oxidation rate of S(IV) in the presence and absence of Fe(III), Mn(II) and Cr(VI) metal ions under controlled experimental conditions (pH, T, concentration of reactants, etc.). The reaction rate in the presence of the NO2 flow was slower than the reaction rate using only clean air with an initial S(IV) concentration of 10-4 mol/L. NO2 appears to react with S(IV), producing a kind of inhibitor that slows down the reaction. Conversely, tenfold lower concentrations of S(IV) ([S(IV)]º = 10-5 mol/L) caused a faster reaction in the presence of NO2 than the reaction using purified air. Under these conditions, therefore, the equilibrium shifts to sulfate formation. With the addition of Fe(III), Mn(II) or Cr(VI) in the presence of a NO2 flow, the reaction occurred faster under all the conditions in which S(IV) oxidation was investigated.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-06-14T11:36:50Z No. of bitstreams: 1 __www.scielo.br_pdf_aabc_v80n2_a06v80n2.pdf: 224553 bytes, checksum: 67fed68cdbb73ae5500618040cafeddf (MD5)Made available in DSpace on 2012-06-14T11:36:50Z (GMT). No. of bitstreams: 1 __www.scielo.br_pdf_aabc_v80n2_a06v80n2.pdf: 224553 bytes, checksum: 67fed68cdbb73ae5500618040cafeddf (MD5) Previous issue date: 2008http://dx.doi.org/10.1590/S0001-37652008000200006reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAaqueous S(IV) oxidationmetal ionsNO2acid rain formationInfluence of NO2 and metal ions on oxidation of aqueous-phase S(IV) in atmospheric concentrationsAnais da Academia Brasileira de Ciênciasinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleenginfo:eu-repo/semantics/openAccessORIGINAL__www.scielo.br_pdf_aabc_v80n2_a06v80n2.pdf__www.scielo.br_pdf_aabc_v80n2_a06v80n2.pdfapplication/pdf224553https://repositorio.ufba.br/bitstream/ri/6130/1/__www.scielo.br_pdf_aabc_v80n2_a06v80n2.pdf67fed68cdbb73ae5500618040cafeddfMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/6130/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT__www.scielo.br_pdf_aabc_v80n2_a06v80n2.pdf.txt__www.scielo.br_pdf_aabc_v80n2_a06v80n2.pdf.txtExtracted texttext/plain27514https://repositorio.ufba.br/bitstream/ri/6130/3/__www.scielo.br_pdf_aabc_v80n2_a06v80n2.pdf.txtb31c67f03fd4f42eef7af810da96c49aMD53ri/61302022-07-05 14:03:12.12oai:repositorio.ufba.br:ri/6130VGVybW8gZGUgTGljZW7vv71hLCBu77+9byBleGNsdXNpdm8sIHBhcmEgbyBkZXDvv71zaXRvIG5vIHJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVRkJBCgogICAgUGVsbyBwcm9jZXNzbyBkZSBzdWJtaXNz77+9byBkZSBkb2N1bWVudG9zLCBvIGF1dG9yIG91IHNldQpyZXByZXNlbnRhbnRlIGxlZ2FsLCBhbyBhY2VpdGFyIGVzc2UgdGVybW8gZGUgbGljZW7vv71hLCBjb25jZWRlIGFvClJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVbml2ZXJzaWRhZGUgRmVkZXJhbCBkYSBCYWhpYSBvIGRpcmVpdG8KZGUgbWFudGVyIHVtYSBj77+9cGlhIGVtIHNldSByZXBvc2l077+9cmlvIGNvbSBhIGZpbmFsaWRhZGUsIHByaW1laXJhLCAKZGUgcHJlc2VydmHvv73vv71vLiBFc3NlcyB0ZXJtb3MsIG7vv71vIGV4Y2x1c2l2b3MsIG1hbnTvv71tIG9zIGRpcmVpdG9zIGRlIAphdXRvci9jb3B5cmlnaHQsIG1hcyBlbnRlbmRlIG8gZG9jdW1lbnRvIGNvbW8gcGFydGUgZG8gYWNlcnZvIGludGVsZWN0dWFsIGRlc3NhIFVuaXZlcnNpZGFkZS4gCgogICAgUGFyYSBvcyBkb2N1bWVudG9zIHB1YmxpY2Fkb3MgY29tIHJlcGFzc2UgZGUgZGlyZWl0b3MgZGUgZGlzdHJpYnVp77+977+9bywgZXNzZSB0ZXJtbyBkZSBsaWNlbu+/vWEgZW50ZW5kZSBxdWU6IAoKICAgIE1hbnRlbmRvIG9zICBkaXJlaXRvcyBhdXRvcmFpcywgcmVwYXNzYWRvcyBhIHRlcmNlaXJvcywgZW0gY2FzbyAKZGUgcHVibGljYe+/ve+/vWVzLCBvIHJlcG9zaXTvv71yaW8gcG9kZSByZXN0cmluZ2lyIG8gYWNlc3NvIGFvIHRleHRvIAppbnRlZ3JhbCwgbWFzIGxpYmVyYSBhcyBpbmZvcm1h77+977+9ZXMgc29icmUgbyBkb2N1bWVudG8gKE1ldGFkYWRvcyBkZXNjcml0aXZvcykuCgogRGVzdGEgZm9ybWEsIGF0ZW5kZW5kbyBhb3MgYW5zZWlvcyBkZXNzYSB1bml2ZXJzaWRhZGUgCmVtIG1hbnRlciBzdWEgcHJvZHXvv73vv71vIGNpZW5077+9ZmljYSBjb20gYXMgcmVzdHJp77+977+9ZXMgaW1wb3N0YXMgcGVsb3MgCmVkaXRvcmVzIGRlIHBlcmnvv71kaWNvcy4gCgogICAgUGFyYSBhcyBwdWJsaWNh77+977+9ZXMgZW0gaW5pY2lhdGl2YXMgcXVlIHNlZ3VlbSBhIHBvbO+/vXRpY2EgZGUgCkFjZXNzbyBBYmVydG8sIG9zIGRlcO+/vXNpdG9zIGNvbXB1bHPvv71yaW9zIG5lc3NlIHJlcG9zaXTvv71yaW8gbWFudO+/vW0gCm9zIGRpcmVpdG9zIGF1dG9yYWlzLCBtYXMgbWFudO+/vW0gbyBhY2Vzc28gaXJyZXN0cml0byBhbyBtZXRhZGFkb3MgCmUgdGV4dG8gY29tcGxldG8uIEFzc2ltLCBhIGFjZWl0Ye+/ve+/vW8gZGVzc2UgdGVybW8gbu+/vW8gbmVjZXNzaXRhIGRlIApjb25zZW50aW1lbnRvIHBvciBwYXJ0ZSBkZSBhdXRvcmVzL2RldGVudG9yZXMgZG9zIGRpcmVpdG9zLCBwb3IgCmVzdGFyZW0gZW0gaW5pY2lhdGl2YXMgZGUgYWNlc3NvIGFiZXJ0by4KCiAgICBFbSBhbWJvcyBvIGNhc28sIGVzc2UgdGVybW8gZGUgbGljZW7vv71hLCBwb2RlIHNlciBhY2VpdG8gcGVsbyAKYXV0b3IsIGRldGVudG9yZXMgZGUgZGlyZWl0b3MgZS9vdSB0ZXJjZWlyb3MgYW1wYXJhZG9zIHBlbGEgCnVuaXZlcnNpZGFkZS4gRGV2aWRvIGFvcyBkaWZlcmVudGVzIHByb2Nlc3NvcyBwZWxvIHF1YWwgYSBzdWJtaXNz77+9byAKcG9kZSBvY29ycmVyLCBvIHJlcG9zaXTvv71yaW8gcGVybWl0ZSBhIGFjZWl0Ye+/ve+/vW8gZGEgbGljZW7vv71hIHBvciAKdGVyY2Vpcm9zLCBzb21lbnRlIG5vcyBjYXNvcyBkZSBkb2N1bWVudG9zIHByb2R1emlkb3MgcG9yIGludGVncmFudGVzIApkYSBVRkJBIGUgc3VibWV0aWRvcyBwb3IgcGVzc29hcyBhbXBhcmFkYXMgcG9yIGVzdGEgaW5zdGl0dWnvv73vv71vLgo=Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:12Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false |
dc.title.pt_BR.fl_str_mv |
Influence of NO2 and metal ions on oxidation of aqueous-phase S(IV) in atmospheric concentrations |
dc.title.alternative.pt_BR.fl_str_mv |
Anais da Academia Brasileira de Ciências |
title |
Influence of NO2 and metal ions on oxidation of aqueous-phase S(IV) in atmospheric concentrations |
spellingShingle |
Influence of NO2 and metal ions on oxidation of aqueous-phase S(IV) in atmospheric concentrations Martins, Cláudia Rocha aqueous S(IV) oxidation metal ions NO2 acid rain formation |
title_short |
Influence of NO2 and metal ions on oxidation of aqueous-phase S(IV) in atmospheric concentrations |
title_full |
Influence of NO2 and metal ions on oxidation of aqueous-phase S(IV) in atmospheric concentrations |
title_fullStr |
Influence of NO2 and metal ions on oxidation of aqueous-phase S(IV) in atmospheric concentrations |
title_full_unstemmed |
Influence of NO2 and metal ions on oxidation of aqueous-phase S(IV) in atmospheric concentrations |
title_sort |
Influence of NO2 and metal ions on oxidation of aqueous-phase S(IV) in atmospheric concentrations |
author |
Martins, Cláudia Rocha |
author_facet |
Martins, Cláudia Rocha Alves, Janete J. F. Carvalho, Wanessa B. D. Cardoso, Cristiane S. C. Andrade, Jailson Bittencourt de |
author_role |
author |
author2 |
Alves, Janete J. F. Carvalho, Wanessa B. D. Cardoso, Cristiane S. C. Andrade, Jailson Bittencourt de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Martins, Cláudia Rocha Alves, Janete J. F. Carvalho, Wanessa B. D. Cardoso, Cristiane S. C. Andrade, Jailson Bittencourt de Martins, Cláudia Rocha Alves, Janete J. F. Carvalho, Wanessa B. D. Cardoso, Cristiane S. C. Andrade, Jailson Bittencourt de |
dc.subject.por.fl_str_mv |
aqueous S(IV) oxidation metal ions NO2 acid rain formation |
topic |
aqueous S(IV) oxidation metal ions NO2 acid rain formation |
description |
p. 279-290 |
publishDate |
2008 |
dc.date.issued.fl_str_mv |
2008 |
dc.date.accessioned.fl_str_mv |
2012-06-14T11:36:50Z |
dc.date.available.fl_str_mv |
2012-06-14T11:36:50Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufba.br/ri/handle/ri/6130 |
dc.identifier.issn.none.fl_str_mv |
0001-3765 |
dc.identifier.number.pt_BR.fl_str_mv |
v. 80, n. 2 |
identifier_str_mv |
0001-3765 v. 80, n. 2 |
url |
http://www.repositorio.ufba.br/ri/handle/ri/6130 |
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eng |
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eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
dc.source.pt_BR.fl_str_mv |
http://dx.doi.org/10.1590/S0001-37652008000200006 |
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reponame:Repositório Institucional da UFBA instname:Universidade Federal da Bahia (UFBA) instacron:UFBA |
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