SYNTHESIS OF Pb2Fe2O5 BY THERMAL DECOMPOSITION OF Pb2[Fe(CN)6].4H2O
Inthe present work the synthesis, thermal analysis and structural characterization of Pb2[Fe(CN)6].4H2O are described in orderto obtain mixed oxides with technological properties. The starting materials and the decomposition products were characterized by IR spectroscopy, powder X-ray diffraction (X...
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| Autores principales: | , , |
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| Lenguaje: | English |
| Publicado: |
Sociedad Chilena de Química
2010
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| Materias: | |
| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000200009 |
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| Sumario: | Inthe present work the synthesis, thermal analysis and structural characterization of Pb2[Fe(CN)6].4H2O are described in orderto obtain mixed oxides with technological properties. The starting materials and the decomposition products were characterized by IR spectroscopy, powder X-ray diffraction (XRDP) and scanning electron microscopy (SEM). The crystal structure of Pb2[Fe(CN)6].4H2O has been refined by Rietveld analysis using X- ray powder diffraction data. It Crystallizes in the monoclinic system with space group P2(1)/m and the cell unit parameters are a = 10.9755(2)Å, b = 7.6285(1)Å, c = 8.5696(1) Å y ß = 98.8375(9)°. Pb2Fe2O5 has been obtained by a simple method, the thermal decomposition of Pb2[Fe(CN)6].4H2O at 700 °C in air. Pb2Fe2O5 crystallizes in the tetragonal system with cell unit parameters a = b = 7.80 A, c = 15.82 A. PbO is also obtained. |
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