Journal article
Iron speciation in natural hyperacid water investigated by Mossbauer spectroscopy
We have demonstrated the usefulness of the archetypical solid state-technique of Mössbauer spectroscopy to non-invasive studies of the redox and coordination chemistry of iron in a natural hyperacid solution from Iron Mountain, CA. Suitable fast cooling conditions were used to prepare a glass from the natural solution.
Measurements of spectra at low temperatures (6 and 15 K) and in large external magnetic fields (6 T) of the glassy, frozen solution revealed a behaviour characteristic of slow paramagnetic relaxation of ferric ions. Analyses of the spectral components are in good agreement with dominance of hexaaquairon(III) ions.
Language: | English |
---|---|
Year: | 2009 |
Pages: | 928-930 |
ISSN: | 18733557 and 13861425 |
Types: | Journal article |
DOI: | 10.1016/j.saa.2009.08.038 |