Abstract
Ferric chloride solution was neutralized using sodium hydroxide as the precipitant to the extent that the final pH of the suspension was ∼7. After thorough washing the precipitated gel was dried in air at 60° C for 24 h to yield brown ferric oxide hydrate xerogel. The xerogel was examined at room temperature using infrared (IR) spectroscopy, powder X-ray diffraction (XRD), electron optical measurements, magnetometry and Mössbauer resonance spectroscopy. It has been concluded that the structural, morphological and magnetic characteristics of the xerogel are identifiable with those of the protoferrihydrite phase.
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Vajpei, A.C., Uma, Saraswat, I.P. et al. Characterization of brown ferric oxide hydrate xerogel. J Mater Sci 19, 3341–3346 (1984). https://doi.org/10.1007/BF00549824
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DOI: https://doi.org/10.1007/BF00549824