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dc.date.accessioned 2023-10-23T12:52:10Z
dc.date.available 2023-10-23T12:52:10Z
dc.date.issued 2009
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/159204
dc.description.abstract The kinetics of the reaction of sulfate radicals with the IHSS Waskish peat fulvic acid in water was investigated in the temperature range from 289.2 to 305.2 K. The proposed mechanism considers the reversible binding of the sulfate radicals by the fulvic acid. The kinetic analysis of the data allows the determination of the thermodynamic parameters ΔG° = -10.2 kcal mol⁻¹, ΔH° = -16 kcal mol⁻¹ and ΔS° = -20.3 cal K⁻¹ mol⁻¹ for the reversible association at 298.2 K. Theoretical (DFT) calculations performed with the Buffle model of the fulvic acids support the formation of H-bonded adducts between the inorganic radicals and the humic substances. The experimental enthalpy change compares well with the theoretical values found for some of the investigated adducts. en
dc.format.extent 992-997 es
dc.language en es
dc.subject In Situ Chemical Oxidation es
dc.subject Persulfate es
dc.subject Fulvic Acids es
dc.subject DFT Calculations es
dc.title A combined theoretical and experimental study on the oxidation of fulvic acid by the sulfate radical anion en
dc.type Articulo es
sedici.identifier.other https://doi.org/10.1039/b900961b es
sedici.identifier.issn 1474-905X es
sedici.identifier.issn 1474-9092 es
sedici.creator.person David Gara, Pedro Maximiliano es
sedici.creator.person Bosio, Gabriela Natalia es
sedici.creator.person González, Mónica Cristina es
sedici.creator.person Russo, Nino es
sedici.creator.person Michelini, María del Carmen es
sedici.creator.person Pis Diez, Reinaldo es
sedici.creator.person Mártire, Daniel Osvaldo es
sedici.subject.materias Química es
sedici.description.fulltext true es
mods.originInfo.place Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas es
mods.originInfo.place Centro de Química Inorgánica es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Photochemical & Photobiological Sciences es
sedici.relation.journalVolumeAndIssue vol. 8, no. 7 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)