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A comparative study on the thermal decomposition of some transition metal maleates and fumarates

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Abstract

Thermal decomposition of M(mal/fum)·xH2O (M=Mn, Co, Ni) has been studied in static air atmosphere from ambient to 500°C employing TG-DTG-DTA, XRD and IR spectroscopic techniques. After dehydration the anhydrous maleate salts decompose to metal oxalate in the temperature range of 320–360°C, which at higher temperature undergo an abrupt oxidative pyrolysis to oxides. The anhydrous fumarate salts have been found to decompose directly to oxide phase. A comparison of thermal analysis reveals that fumarates are thermally more stable than maleates.

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Authors and Affiliations

  1. Department of Chemistry, Guru Nanak Dev University, Amritsar, 143 005, India

    B. S. Randhawa & M. Kaur

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  1. B. S. Randhawa
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  2. M. Kaur
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Correspondence to B. S. Randhawa.

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Randhawa, B.S., Kaur, M. A comparative study on the thermal decomposition of some transition metal maleates and fumarates. J Therm Anal Calorim 89, 251–255 (2007). https://doi.org/10.1007/s10973-005-7473-2

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  • DOI: https://doi.org/10.1007/s10973-005-7473-2

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