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Updated: Jul 15, 2026

Metal-silicate Partitioning at High Pressure and Temperature: Experimental Methods and a Protocol to Suppress Highly Siderophile Element Inclusions
Published on: June 13, 2015
Sorption of silicates on goethite, hematite, and magnetite: experiments and modelling
Norbert Jordan1, Nicolas Marmier, Claire Lomenech
1Université de Nice-Sophia-Antipolis, Laboratoire de Radiochimie, Sciences Analytiques et Environnement, 28 avenue Valrose, F-06108 Nice Cedex 2, France. jordan@unice.fr
Abstract:
Sorption of H(4)SiO(4) (including experiments as a function of time, K(d) measurement with different m/v ratios and sorption edges) onto different iron (hydro)oxides as goethite (alpha-FeOOH), hematite (alpha-Fe(2)O(3)), and magnetite (Fe(3)O(4)) has been studied with concentration of silicates under solubility limit. A surface complexation model has been used to account for sorption edge of silicates onto these iron oxide surfaces. It reveals that two types of surface complex namely FeH(3)SiO(4) and FeH(2)SiO(4)(-), are needed to describe properly the experimental observations.
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