Studies on inorganic ion exchangers. I. Preparation, properties, and applications of ferric phosphate
- 15 June 1976
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 54 (12) , 1892-1898
- https://doi.org/10.1139/v76-270
Abstract
Eight samples of ferric phosphates have been prepared at different pH values under different conditions. This material shows cation exchange properties. Ferric phosphate prepared by ferric nitrate and ammonium dihydrogen phosphate at pH 1 is the most stable and shows the maximum ion exchange capacity, hence, this sample is studied in detail. The mole ratio of Fe3+:PO43− is 1:2. The ion exchange capacity depends upon temperature and hydrated radii, and these relations are discussed. Certain important separations are achieved on the ferric phosphate column. Its oxidation properties are also qualitatively investigated with some reducing agents.Keywords
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