Synthesis of pb2fe2o5 by thermal decomposition of pb2[fe(cn)6].4h2o

• DIEGO MAURICIO GIL ^[1] ; RAÚL E CARBONIO ^[2] ; MARÍA INÉS GÓMEZ ^[1]
  1. [1] Universidad Nacional de Tucumán

     Universidad Nacional de Tucumán

     Argentina

     
  2. [2] Universidad Nacional de Córdoba

     Universidad Nacional de Córdoba

     Argentina

     
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 55, Nº. 2, 2010, págs. 189-192
• Idioma: inglés
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• Resumen

  • 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.