Kinetics and Mechanism of the Reaction of Hydrogen Sulfide with Lepidocrocite

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The initial reaction between hydrogen sulfide and the surface of lepidocrocite was studied in the pH range between 4 and 8.6 by monitoring the change of the emf of a pH2S sensor. The rate of H2S oxidation is pseudo first order with respect to H2S and shows a strong pH dependence with a maximum at pH...

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Detalles Bibliográficos
Autor principal: Stefan, P.
Otros Autores: Marla Dos, S.A, Bernhard, W., Rene, G.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1992
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Acceso en línea:Registro en Scopus
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100 1 |a Stefan, P. 
245 1 0 |a Kinetics and Mechanism of the Reaction of Hydrogen Sulfide with Lepidocrocite 
260 |c 1992 
270 1 0 |m Stefan, P.; CH-6047 Kastanienbaum, Depto de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria Pabellón II, Buenos Aires, Argentina 1428, United States 
506 |2 openaire  |e Política editorial 
504 |a Einsele, W., (1936) Arch. Hydrobiol., 29, p. 664 
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504 |a Sholkovitz, E.R., Copland, D., (1982) Geochim. Cosmochim. Acta, 46, p. 393 
504 |a Johnson, A.C., (1986) Geochim. Cosmochim. Acta, 50, p. 2433 
504 |a Tessier, A., Carignan, R., Dubreuil, B., Rapin, F., (1989) Geochim. Cosmochim. Acta, 53, p. 1511 
504 |a Belzile, N., Tessier, A., (1990) Geochim. Cosmochim. Acta, 54, p. 103 
504 |a Giblin, A.E., Likens, G.E., White, D., Howarth, R.W., (1990) Limnol. Oceanogr., 35, p. 852 
504 |a Nealson, K.H., (1983) Microbial Geochemistry, , Krumbein, W.E., Ed.; Blackwell: Oxford, England 
504 |a Schindler, D.W., (1985) Chemical Processes in Lakes, , Stumm, W., Ed.; John Wiley & Sons: New York 
504 |a Lovley, D.R., Phillips, E.J.P., Lonergan, D.J., (1991) Environ. Sci. Technol., 25, p. 1062 
504 |a De Vitre, R.R., Buffle, J., Perret, D., Baudat, R., (1988) Geochim. Cosmochim. Acta, 52, p. 1601 
504 |a Wieland, E., Wehrli, B., Stumm, W., (1988) Geochim. Cosmochim. Acta, 52, p. 1969 
504 |a Stumm, W., Wieland, E., (1990) Aquatic Chemical Kinetics-Reaction Rates of Processes in Natural Waters, , John Wiley & Sons: New York 
504 |a Zinder, B., Furrer, G., Stumm, W., (1986) Geochim. Cosmochim. Acta, 50, p. 1861 
504 |a Dos Santos Afonso, M., Morando, P.J., Blesa, M.A., Banwart, S., Stumm, W.J., (1990) Colloid Interface Sci., 138, p. 74 
504 |a Sulzberger, B., Suter, D., Siffert, C., Banwart, S., Stumm, W., (1989) Mar. Chem., 28, p. 127 
504 |a Rickard, T., (1974) Am.J. Sci., 274, p. 941 
504 |a Pyzik, A.J., Sommer, S.E., (1981) Geochim. Cosmochim. Acta, 45, p. 687 
504 |a Schwertmann, U., Taylor, R.M., (1989) Minerals in the Soil Environment, , 2nd ed.; Dixon, J.B., Ed.; Soil Science Society of America: Madison, WI 
504 |a Canfield, D.E., (1989) Geochim. Cosmochim. Acta, 53, p. 619 
504 |a Frevert, T., Galster, H., (1978) Schweiz.Z. Hydrol., 40, p. 199 
504 |a Gupta, S.K., (1976) Dissertation, Universitat Bern 
504 |a Peters, K., Huber, G., Netsch, S., Frevert, T., (1984) GWT, Gas-Wasserfach: Wasser/Abwasser, 125, p. 386 
504 |a Hering, J.G., Stumm, W., (1990) Mineral Water-Interface Geochemistry; Reviews in Mineralogy 23, , Hochella, M.F., White, A.F., Eds.; Mineralogical Society of America: Washington, DC 
504 |a Baumgartner, E., Blesa, M.A., Maroto, A.J.G., (1982) J. Chem. Soc., Dalton Trans., 9, p. 1649 
504 |a Cornell, R.M., Schindler, P.W., (1987) Clays Clay Miner., 33, p. 347 
504 |a LaKind, J.S., Stone, A.T., (1989) Geochim. Cosmochim. Acta, 53, p. 961 
504 |a Luther, G.W., III, (1990) Aquatic Chemical Kinetics-Reaction Rates of Processes in Natural Waters, , Stumm, W., Ed.; John Wiley & Sons: New York 
504 |a Ben-Yaakov, S., (1973) Limnol. Oceanogr., 18, p. 86 
504 |a Berner, R.A., (1970) Am. J. Sci., 268, p. 1 
504 |a Schoonen, M.A.A., Barnes, H.L., (1991) Geochim. Cosmochim. Acta, 55, p. 1495 
504 |a Luther, G.W., III, (1991) Geochim. Cosmochim. Acta, 55, p. 2839 
504 |a Urban, N., Environmental Chemistry of Lakes and Reservoirs, , Baker, L.A., Ed.; ACS Advances in Chemistry Series; American Chemical Society: Washington, DC, in press 
520 3 |a The initial reaction between hydrogen sulfide and the surface of lepidocrocite was studied in the pH range between 4 and 8.6 by monitoring the change of the emf of a pH2S sensor. The rate of H2S oxidation is pseudo first order with respect to H2S and shows a strong pH dependence with a maximum at pH 7. Two rate laws were derived: R(5<pH<6) = ka[H+]-2[H2S]tot,A and R(7<PH<8.6) = Kb[H+]1[H2S]totA with ka = 1.5 × 10-13 M2 min-1 and kb = 2 X 106 M-1 min-1. The pH maximum of the reaction rate can be explained by using a surface speciation model suggested for the reductive dissolution of hematite by H2S (1): The oxidation rate of H2S is proportional to the concentration of inner-sphere surface complexes of HS- formed with either the neutral ferric oxide surface sites (>FeOH) or the protonated ferric oxide surface sites (>FeOH2+). The amount of protons consumed per mole of H2Stot suggests that polysulfides and elemental sulfur are the initial products formed during the experiments. © 1992, American Chemical Society. All rights reserved.  |l eng 
593 |a CH-6047 Kastanienbaum, Depto de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria Pabellón II, Buenos Aires, Argentina 1428, United States 
690 1 0 |a FERRIC HYDROXIDE 
690 1 0 |a HYDROGEN SULFIDE 
690 1 0 |a ARTICLE 
690 1 0 |a CHEMICAL ANALYSIS 
690 1 0 |a CHEMICAL REACTION KINETICS 
690 1 0 |a LAKE 
690 1 0 |a OXIDATION 
690 1 0 |a WATER POLLUTANT 
690 1 0 |a WATER TREATMENT 
650 1 7 |2 spines  |a PH 
700 1 |a Marla Dos, S.A. 
700 1 |a Bernhard, W. 
700 1 |a Rene, G. 
773 0 |d 1992  |g v. 26  |h pp. 2408-2413  |k n. 12  |p Environ. Sci. Technol.  |x 0013936X  |w (AR-BaUEN)CENRE-14  |t Environmental Science and Technology 
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856 4 0 |u https://doi.org/10.1021/es00036a011  |y DOI 
856 4 0 |u https://hdl.handle.net/20.500.12110/paper_0013936X_v26_n12_p2408_Stefan  |y Handle 
856 4 0 |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0013936X_v26_n12_p2408_Stefan  |y Registro en la Biblioteca Digital 
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999 |c 73610 

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