A vibrational spectroscopic 18O tracer study of pyrite oxidation

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dc.contributor.author Reedy, BJ
dc.contributor.author Beattie, JK
dc.contributor.author Lowson, RT
dc.date.accessioned 2014-04-14T02:36:08Z
dc.date.issued 1991
dc.identifier.citation Geochimica et Cosmochimica Acta, 1991, 55 (6), pp. 1609 - 1614
dc.identifier.issn 0016-7037
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/26072
dc.description.abstract Pyrite was oxidised under 18O2 gas in H216O solutions, with and without added ferric ion, and the sulfate produced was analysed by vibrational spectroscopy to determine the relative amounts of sulfate isotopomers (S16On18O4-n2-) formed. At 70°C and pH 1, with no added Fe3+, the majority of the sulfate formed was that which derived all four oxygen atoms from water (i.e., S16O42-), but significant amounts of two other isotopomers, S16O318O2- and S16O218O22-, which derive one or two oxygen atoms from molecular oxygen were observed. When Fe3+ was added at the start under identical conditions, no S16O218O22- was observed. The major isotopomer formed was still S16O42-, with S16O318O2- present as a minor product. Experiments which were performed at initial pH 7 yielded similar results, as did others performed at 20°C, although the amounts of the minor isotopomers formed vary with temperature. All of the results were confirmed by performing identical experiments with the source of the oxygen isotopes reversed, that is, by oxidising pyrite under air in H218O solutions and obtaining the same products in isotopic reverse. © 1991.
dc.language eng
dc.relation.isbasedon 10.1016/0016-7037(91)90132-O
dc.title A vibrational spectroscopic 18O tracer study of pyrite oxidation
dc.type Journal Article
dc.parent Geochimica et Cosmochimica Acta
dc.journal.volume 6
dc.journal.volume 55
dc.journal.number 6 en_US
dc.publocation Oxford en_US
dc.identifier.startpage 1609 en_US
dc.identifier.endpage 1614 en_US
dc.cauo.name SCI.Chemistry and Forensic Sciences en_US
dc.conference Verified OK en_US
dc.for 0306 Physical Chemistry (Incl. Structural)
dc.for 0301 Analytical Chemistry
dc.for 0399 Other Chemical Sciences
dc.personcode 000263
dc.percentage 40 en_US
dc.classification.name Other Chemical Sciences en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity ISIA1991FU77200011 en_US
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - Forensic Science
utslib.copyright.status Closed Access
utslib.copyright.date 2015-04-15 12:17:09.805752+10
pubs.consider-herdc false
utslib.collection.history School of Chemistry and Forensic Science (ID: 339)
utslib.collection.history Closed (ID: 3)

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