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http://nopr.niscpr.res.in/handle/123456789/30789| Title: | Synthesis and analytical application of Fe(III) based heteropoly acid cation exchangers |
| Authors: | Geetha, V Janardanan, C |
| Keywords: | Ion exchangers;pH Titration;Ion exchange capacity;Distribution coefficient |
| Issue Date: | Mar-2006 |
| Publisher: | NISCAIR-CSIR, India |
| IPC Code: | B01J39/00 |
| Abstract: | New inorganic ion exchangers based on Fe(III) namely ferric tungstomolybdate, ferric tungstosilicate, ferric tungstovanadate have been synthesized and characterized on the basis of chemical composition. The ion exchange capacity, pH titrations, distribution Coefficients, FTIR, TGA and thermal stabilities. The ion exchangers were found to be stable in 1.0 M mineral acids and 1.0 M metal chloride solutions. The formulae proposed for the exchangers are Fe2O3.2WO3.8H2O; Fe2O3.2WO3.2SiO2.9H2O and Fe2O3.2WO3.V2O5.10H2O respectively. Based on the difference in Kd values, some analytically important separations of metal ions have been achieved. The important mixtures analyzed are Al3+ - Mg2+, Co2+- Pb2+, Hg2+ - Pb2+, Ni2+- Pb2+, Cd2+ - Pb2+ and Cu2+ - Pb2+. |
| Page(s): | 185-188 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Appears in Collections: | IJCT Vol.13(2) [March 2006] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCT 13(2) 185-188.pdf | 860.05 kB | Adobe PDF | View/Open |
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