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Herszage, J.; Dos Santos Afonso, M. "The autooxidation of hydrogen sulfide in the presence of hematite" (2000) Colloids and Surfaces A: Physicochemical and Engineering Aspects. 168(1):61-69
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Abstract:

The kinetics of the catalyzed autoxidation of hydrogen sulfide to sulfate and thiosulfate has been investigated in the pH range 5.0-7.0. The concentration of H2S was varied between 1.35 and 2.02x10-3 M, and that of O2 between 3.4 10-5 and 1.35 10-4 M. The catalytic effect of the α-Fe2O3 has been observed. Experimental data suggest that the catalyzed reaction proceeds via the formation of two different inner sphere surface complexes ≡Fe(III)S- and ≡Fe(III)SH. Four oxidized surface complexes ≡Fe(III)SO2 -, ≡Fe(III)S2O- ≡Fe(III)SO4 -, and ≡Fe(III)S2O3 - has been postulated to explain the formation of sulfate and thiosulfate that are released into the solution without a further electron transfer to the surface. Fit parameters for the equations describing the distribution of the oxidation products are obtained. Copyright (C) 2000 Elsevier Science B.V.

Registro:

Documento: Artículo
Título:The autooxidation of hydrogen sulfide in the presence of hematite
Autor:Herszage, J.; Dos Santos Afonso, M.
Filiación:Inquimae-Depto. de Quim. Inorg., Analitica Y Quim. Fis., Fac. Cie. E., Buenos Aires, Argentina
Palabras clave:Autoxidation; Hematite; Hydrogen sulfide; Kinetics; ferric oxide; hydrogen sulfide; oxygen; sulfate; thiosulfate; article; autooxidation; dissolution; electron transport; kinetics; pH; pressure; priority journal; transmission electron microscopy
Año:2000
Volumen:168
Número:1
Página de inicio:61
Página de fin:69
DOI: http://dx.doi.org/10.1016/S0927-7757(99)00453-7
Título revista:Colloids and Surfaces A: Physicochemical and Engineering Aspects
Título revista abreviado:Colloids Surf. A Physicochem. Eng. Asp.
ISSN:09277757
CODEN:CPEAE
CAS:ferric oxide, 1309-37-1, 56449-54-8; hydrogen sulfide, 15035-72-0, 7783-06-4; oxygen, 7782-44-7; sulfate, 14808-79-8; thiosulfate, 14383-50-7
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09277757_v168_n1_p61_Herszage

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Citas:

---------- APA ----------
Herszage, J. & Dos Santos Afonso, M. (2000) . The autooxidation of hydrogen sulfide in the presence of hematite. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 168(1), 61-69.
http://dx.doi.org/10.1016/S0927-7757(99)00453-7
---------- CHICAGO ----------
Herszage, J., Dos Santos Afonso, M. "The autooxidation of hydrogen sulfide in the presence of hematite" . Colloids and Surfaces A: Physicochemical and Engineering Aspects 168, no. 1 (2000) : 61-69.
http://dx.doi.org/10.1016/S0927-7757(99)00453-7
---------- MLA ----------
Herszage, J., Dos Santos Afonso, M. "The autooxidation of hydrogen sulfide in the presence of hematite" . Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 168, no. 1, 2000, pp. 61-69.
http://dx.doi.org/10.1016/S0927-7757(99)00453-7
---------- VANCOUVER ----------
Herszage, J., Dos Santos Afonso, M. The autooxidation of hydrogen sulfide in the presence of hematite. Colloids Surf. A Physicochem. Eng. Asp. 2000;168(1):61-69.
http://dx.doi.org/10.1016/S0927-7757(99)00453-7