Bhuvanesh, Nattamai S. P. ; Uma, Seetharaman ; Subbanna, Gonar N. ; Gopalakrishnan, Jagannatha (1995) Acid leaching of LiMW2O8(M = Al, Fe) in aqueous HNO3: formation of WO3·H2O and WO3·1/3H2O Journal of Materials Chemistry, 5 (6). pp. 927-930. ISSN 0959-9428
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Official URL: http://pubs.rsc.org/en/Content/ArticleLanding/1995...
Related URL: http://dx.doi.org/10.1039/JM9950500927
Abstract
WO3·H2O and WO3·1/3H2O are obtained by acid leaching of LiMW2O8(M Al, Fe). The monohydrate is obtained by leaching in 6 mol I-1 HNO3, and the one-third hydrate by leaching in concentrated HNO3. On dehydration, the monohydrate transforms to the monoclinic ReO3-like WO3, whereas the one-third hydrate transforms to hexagonal WO3. The present work, together with our previous work on the leaching of LiVWO6(Chem. Mater., 1994, 6, 373), shows that acid leaching is not likely to be a topochemical reaction, since the structure of the solid products obtained is not determined by the structure of the starting material.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Royal Society of Chemistry. |
| ID Code: | 84343 |
| Deposited On: | 25 Feb 2012 05:52 |
| Last Modified: | 25 Feb 2012 05:52 |
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