Sorption of arsenite, arsenate, and thioarsenates to iron oxides and iron sulfides: a kinetic and spectroscopic investigation.

@article{Couture2013SorptionOA,
  title={Sorption of arsenite, arsenate, and thioarsenates to iron oxides and iron sulfides: a kinetic and spectroscopic investigation.},
  author={R-M Couture and J{\'e}r{\^o}me Rose and Naresh Kumar and Kristen Mitchell and Dirk Wallschlaeger and Philippe Van Cappellen},
  journal={Environmental science & technology},
  year={2013},
  volume={47 11},
  pages={5652-9}
}
Sorption to iron (Fe) minerals determines the fate of the toxic metalloid arsenic (As) in many subsurface environments. Recently, thiolated As species have been shown to dominate aqueous As speciation under a range of environmentally relevant conditions, thus highlighting the need for a quantitative understanding of their sorption behavior. We conducted batch experiments to measure the time-dependent sorption of two S-substituted arsenate species, mono- and tetrathioarsenate, and compared it to… CONTINUE READING
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