The effect of zinc sulfide on phase transformations of ferrihydrite

1 January 2005

journal article
Published by Mineralogical Society of America in American Mineralogist: Journal of Earth and Planetary Materials

Vol. 90 (1) , 258-261
https://doi.org/10.2138/am.2005.1468

Abstract

The addition of ZnS particles to suspensions of ferrihydrite promotes the formation of the more crystalline phases goethite [α-FeO(OH)] and hematite (α-Fe₂O₃) at pH ~ 2–3 and 85 °C. This previously undocumented effect appears to arise from surface-mediated reduction of Fe³⁺ species to Fe²⁺ with associated dissolution of ZnS.

Keywords

ZINC