English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/13010
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 11 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Raman spectroscopy of the system iron(III)-sulfuric acid-water: an approach to Tinto River's (Spain) hydrogeochemistry

AutorSobrón, Pablo ; Rull, Fernando ; Sobrón, Francisco; Sanz-Arranz, Aurelio; Medina, Jesús ; Nielsen, C. J.
Palabras claveAcid mine waters
Sulfate
Iron
Raman spectroscopy
Fecha de publicación1-ago-2007
EditorElsevier
CitaciónSpectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 68(4): 1138-1142 (2007)
ResumenAcid mine drainage is formed when pyrite (FeS2) is exposed and reacts with air and water to form sulfuric acid and dissolved iron. Tinto River (Huelva, Spain) is an example of this phenomenon. In this study, Raman spectroscopy has been used to investigate the speciation of the system iron(III)–sulfuric acid–water as an approach to Tinto River's aqueous solutions. The molalities of sulfuric acid (0.09 mol/kg) and iron(III) (0.01–1.5 mol/kg) were chosen to mimic the concentration of the species in Tinto River waters. Raman spectra of the solutions reveal a strong iron(III)–sulfate inner-sphere interaction through the ν1 sulfate band at 981 cm−1 and its shoulder at 1005 cm−1. Iron(III)–sulfate interaction may also be facilitated by hydrogen bonds and monitored in the Raman spectra through the symmetric stretching band of bisulfate at 1052 cm−1 and a shoulder at 1040 cm−1. Other bands in the low-frequency region of the Raman spectra are attributed to the hydrogen-bonded complexes formation as well.
Descripción5 pages, 2 figures, 2 tables.-- PMID: 17869164 [PubMed].-- Printed version published Dec 15, 2007.-- ISI Article Identifier: 000251747000020.
Issue title: Seventh International Conference on Raman Spectroscopy Applied to the Earth and Planetary Sciences (Granada, Spain, June 4-7, 2006).
Versión del editorhttp://dx.doi.org/10.1016/j.saa.2007.06.044
URIhttp://hdl.handle.net/10261/13010
DOI10.1016/j.saa.2007.06.044
ISSN1386-1425
Aparece en las colecciones: (CAB) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.