| Revista: | Materials research |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000312880 |
| ISSN: | 1516-1439 |
| Autores: | Matkovic, Silvana Raquel1 Valle, Graciela Manuela Briand, Laura Estefania |
| Instituciones: | 1Universidad Nacional de La Plata, Centro de Investigación y Desarrollo en Ciencias Aplicadas, La Plata, Buenos Aires. Argentina |
| Año: | 2005 |
| Periodo: | Jul-Sep |
| Volumen: | 8 |
| Número: | 3 |
| Paginación: | 351-355 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Nota breve o noticia |
| Enfoque: | Experimental |
| Resumen en inglés | Phospho-tungstic and phospho-molybdic Wells-Dawson heteropolyacids, H6P2W18O62 .xH2O and H6P2Mo18O62 .xH2O respectively, were synthesized through ion exchange with a higher yield (~ 90%) than the conventional organic route (~ 70%). Pure, non-degraded heteropolyacids are obtained when the corresponding ammonium salt [(NH4)6P2W18 O62.13H2O or (NH4)6P2Mo18 O62.12H2O] is kept in contact with an acid resin [about (1:0.8) salt:resin weight ratio] up to three days. The use of an organic media instead of an aqueous media greatly favors the completeness of the exchange |
| Disciplinas: | Ingeniería, Química, Física y astronomía |
| Palabras clave: | Ingeniería de materiales, Ingeniería química, Química industrial, Física de materia condensada, Catalizadores, Intercambio iónico, Cambio de fase, Temperatura |
| Keyword: | Engineering, Chemistry, Physics and astronomy, Chemical engineering, Materials engineering, Industrial chemistry, Condensed matter physics, Catalysts, Ion exchange, Phase change, Temperature |
| Texto completo: | Texto completo (Ver HTML) |
