Synthesis and thermal study of tris(ammonium) hexafluoro metallates(III) of some rare earths
| Autor: | Patwe, S. J., Wani, B. N., Rao, U. R. K., Venkateswarlu, K. S. |
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| Zdroj: | Canadian Journal of Chemistry; November 1989, Vol. 67 Issue: 11 p1815-1818, 4p |
| Abstrakt: | Fluorination of oxides of rare earths using ammonium hydrogen fluoride at room temperature gave new compounds [NH4]3MF6•nH2O, where M = Y, La, Nd, and Pr. In the case of cerium, [NH4]4CeF8is formed. The course of thermal decomposition of all these compounds is studied by thermogravimetry/differential thermal analysis (TG/DTA) and X-ray powder diffraction (XRD). Keywords: hexafluoro metallates, rare earths, ammonium hydrogen fluoride, thermal decomposition, X-ray diffraction. |
| Databáze: | Supplemental Index |
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