Mössbauer study of the thermal decomposition of some iron(III) dicarboxylates

Abstract

The thermal decomposition of iron(III) succinate, Fe 2(C 4H 4O 4) 2(OH) 2 and iron(III) adipate pentahydrate, Fe 2(C 6H 8O 4) 3·5 H 2O, has been investigated at different temperatures for different time intervals in static air atmosphere using Mössbauer spectroscopy and nonisothermal techniques (DTG-DTA-TG). The reduction of iron(III) to iron(II) species has been observed at 533 K and 563 K in the case of iron(III) succinate and iron(III) adipate, respectively. At higher temperatures, α-Fe 2O 3 is formed as the final thermolysis product.