ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The structural properties of the solid phase, formed by the hydrolysis of Fe3+ ions in Fe2(SO4)3 solutions at 90 or 120 °C, were investigated using X-ray diffraction,57Fe Mössbauer spectroscopy, Fourier transform-infrared spectroscopy (FT—IR) and transmission electron microscopy. The concentration regions of Fe2(SO4)3 were determined for the precipitation of goethite, α-FeOOH, or hydronium jarosite, H3OFe3(OH)6(SO4)2′ as a single phase. Superparamagnetic behaviour of α-FeOOH particles was observed. Hydrolysis of Fe3+ ions in 0.1 M Fe2(SO4)3 solutions at 120 °C produced H3OFe3(OH)6(SO4)2 and basic sulphate, Fe4(OH)10SO4. The interpretation of57Fe Mössbauer and FT—IR spectra is given.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01154672
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