Formation and Crystallization of Fe(III) Hydroxides. Influence of precipitation temperature and the nature of the starting Fe(III) salt on Fe(III) hydroxide crystallization in alkaline medium
- 1 September 1983
- journal article
- research article
- Published by Wiley in Zeitschrift für anorganische und allgemeine Chemie
- Vol. 504 (9) , 179-186
- https://doi.org/10.1002/zaac.19835040923
Abstract
It is shown that amorphous precipitates of Fe(III) hydroxides are composed of two phases, namely weakly magnetic primary particles and ferrimagnetic fine‐grained particles. The relative proportion of the two phases, the type of phase transitions and the rate of amorphous precipitate crystallization during the ageing process are determined by the precipitation temperature. The crystallization of Fe(III) hydroxides during the ageing in mother liquors occurs by the “oriented growth” mechanism.Keywords
This publication has 4 references indexed in Scilit:
- Infrared and Mössbauer spectroscopy, electron microscopy and chemical reactivity of ferric chloride hydrolysis productsJournal of Inorganic and Nuclear Chemistry, 1975
- Zur Bildung von α‐FeOOH und α‐Fe2O3 aus amorphem Eisen(III)‐hydroxid. IIIZeitschrift für anorganische und allgemeine Chemie, 1966
- Über die Hydrolyse von Eisen(III)‐perchlorat‐LösungenHelvetica Chimica Acta, 1962
- Zur Bindung des Wassers in den Systemen Al2O3/H2O, SiO2/H2O und Fe2O3/H2OZeitschrift für anorganische und allgemeine Chemie, 1958