Physico-chemical studies on zinc hexa(formato)ferrate(III) decahydrate

Authors
Randhawa, BS Sweety, K
Citation
Bs. Randhawa et K. Sweety, Physico-chemical studies on zinc hexa(formato)ferrate(III) decahydrate, J THERM ANA, 60(2), 2000, pp. 535-539
Citations number
15
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
ISSN journal
13886150 → ACNP
Volume
60
Issue
2
Year of publication
2000
Pages
535 - 539
Database
ISI
SICI code
1388-6150(2000)60:2<535:PSOZHD>2.0.ZU;2-N
Abstract
Thermal analysis of zinc hexa(formato)ferrate(III) decahydrate, Zn-3[Fe(HCO O)(6)](2)10H(2)O has been investigated upto 800 degrees C in static air atm osphere employing TG, DSC, XRD, IR, ESR and Mossbauer spectroscopic techniq ues. After dehydration at 160 degrees C, the anhydrous complex decomposes i nto alpha-Fe2O3 and zinc carbonate in successive stages. Subsequently the c ations remix to yield fine particles of zinc ferrite, ZnFe2O4, as a result of solid state reaction between alpha-Fe2O3 and zinc carbonate at a tempera ture (600 degrees C) much lower than for ceramic method.