Preparation of cesium ferrite from the thermolysis of cesium tris(maleato) ferrate(III) hexahydrate

Abstract

<span style="font-size:14.0pt;line-height: 115%;font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" color:black;mso-ansi-language:en-in;mso-fareast-language:en-in;mso-bidi-language:="" hi"="" lang="EN-IN">The thermolysis of cesium tris(maleato) ferrate(III) hexahydrate, Cs₃ [Fe(C₂H₂C₂O₄)₃].6H₂O has been investigated up to 700^oC in static air atmosphere employing Mossbauer and thermo-analytical techniques(TG,DTA,DTG). The anhydrous complex undergoes reduction to iron(II) species at 185^oC followed by demixing of the cations forming α -Fe₂O₃ , and cesium oxalate/carbonate in successive stages. Finally, a solid state reaction occurs between α-Fe₂O₃ and cesium carbonate resulting in the formation of fine particles of cesium ferrite. The results have been compared with those of cesium ferrioxalate.</span>