The effect of zinc sulfide on phase transformation of ferrihydrite

Loan, Mitch; Parkinson, Gordon; Richmond, William; Parker, A.

19500_downloaded_stream_18.pdf (157.7Kb)

Access Status

Open access

Authors

Loan, Mitch

Parkinson, Gordon

Richmond, William

Parker, A.

Date

2005

Type

Journal Article

Metadata

Show full item record

Citation

Loan, Mitch and Parkinson, Gordon and Richmond, William and Parker, A.J.. 2005. The effect of zinc sulfide on phase transformation of ferrihydrite. American Mineralogist 90: 258-261.

Source Title

American Mineralogist

Additional URLs

http://www.minsocam.org/MSA/ammin/toc/

Faculty

Department of Applied Chemistry

Division of Engineering, Science and Computing

Faculty of Science

URI

http://hdl.handle.net/20.500.11937/32401

Collection

Curtin Research Publications

Abstract

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