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Mössbauer study on thermal decomposition of some hydroxy iron(III) carboxylates

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Abstract

Thermal decomposition of some hydroxy iron(III) carboxylates, i.e., iron(III) lactate, Fe(CH3CHOHCOO)3, iron(III) tartrate, Fe2(C4H4O6)3 and iron(III) citrate, Fe(C6H5O7) · 5H2O has been studied in static air atmosphere in the temperature range 298–773 K employing Mössbauer, infrared spectroscopies and themogravimetric methods. The compounds directly decompose to α-Fe2O3 without undergoing reduction to iron(II) intermediates. An increase in particle size of α-Fe2O3 has been observed with increasing decomposition temperature. The thermal stability follows the sequence: iron(III) tartrate > iron(III)citrate > iron(III)lactate.

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Authors and Affiliations

  1. Department of Chemistry, Guru Nanak Dev University, 143005, Amritsar, India

    B. S. Randhawa, R. Kaur & K. Sweety

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  1. B. S. Randhawa
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  2. R. Kaur
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  3. K. Sweety
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Randhawa, B.S., Kaur, R. & Sweety, K. Mössbauer study on thermal decomposition of some hydroxy iron(III) carboxylates. J Radioanal Nucl Chem 220, 271–273 (1997). https://doi.org/10.1007/BF02034872

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  • DOI: https://doi.org/10.1007/BF02034872

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