Confirmation of a sulfur-rich layer on pyrite after oxidative dissolution by Fe(III) ions around pH 2

Details Confirmation of a sulfur-rich layer on pyrite after oxidative dissolution by Fe(III) ions around pH 2 Confirmation of a sulfur-rich layer on pyrite after oxidative dissolution by Fe(III) ions around pH 2

Aug 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995gecoa..59.3155s&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 59, Issue 15, pp.3155-3158

Physics

8

Scientific paper

The stoichiometry of pyrite dissolution by Fe(III) ions was studied in chloride media around pH 2. Pyrite was found to dissolve nonstoichiometrically during the initial tens of hours and a S-rich layer was formed on the pyrite due to preferential dissolution of iron. The major constituent of the layer was elemental S, identified by X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy.

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