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Thermal analysis of manganese hexa(formato)ferrate(III) hexahydrate

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Abstract

Thermal decomposition of managanese hexa(formato)ferrate(III)hexahydrate, i.e., Mn3[Fe(HCOO)6l2·6H2O has been studied upto 700°C in static air atmosphere employing TG, DSC, XRD, IR and Mössbauer spectroscopic techniques. The anhydrous complex decomposed directly into ferric oxide and manganese carbonate in successive stages without undergoing reduction to iron(II) intermediate. Finally a solid state reaction between Fe2O3 and manganese carbonate leads to the formatin of manganese ferrte (MnFe2O4) at a temperature (655°C) much lower than for ceramic method. A saturation magnetization value (4 Ms) of 2550 Gauss makes MnFe2O4 suitable for functioning at high frequencies.

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Randhawa, B.S. Thermal analysis of manganese hexa(formato)ferrate(III) hexahydrate. J Radioanal Nucl Chem 220, 237–239 (1997). https://doi.org/10.1007/BF02034863

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