Authors:
A. Martinelli Dipartimento di Chimica e Chimica Industriale and Dipartimento per lo Studio del Territorio e delle sue Risorse Via Dodecaneso 31 I-16146 Genova Italy Via Dodecaneso 31 I-16146 Genova Italy

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M. Ferretti Dipartimento di Chimica e Chimica Industriale Via Dodecaneso 31 I-16146 Genova Italy Via Dodecaneso 31 I-16146 Genova Italy

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V. Buscaglia National Research Council Istituto di Chimica-Fisica Applicata dei Materiali Via De Marini 6 I-16149 Genova Italy Via De Marini 6 I-16149 Genova Italy

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R. Cabella Dipartimento per lo Studio del Territorio e delle sue Risorse Corso Europa 26 I-16132 Genova Italy Corso Europa 26 I-16132 Genova Italy

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G. Lucchetti Dipartimento per lo Studio del Territorio e delle sue Risorse Corso Europa 26 I-16132 Genova Italy Corso Europa 26 I-16132 Genova Italy

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Abstract  

The reaction between Fe2O3 (hematite) and Sb2O3 leading to the formation of the rutile-type compound FeSbO4 was analysed by means of DTA and TG, performed under various O2 partial pressures up to 1673 K. The reaction products were identified by means of XRD analysis. Three transformations occur in the analysed temperature range: 1. oxidation of Sb2O3 to Sb2O4 between 745 and 768 K; 2. formation of FeSbO4 between 1226 and 1246 K; 3. decomposition of FeSbO4 without melting above 1543-1591 K. The TG-DTA and XRD analysis results indicate that deviations from perfect stoichiometry are likely to exist inside FeSbO4.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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