Thermal decomposition of Fe(II) carboxylates: Comparison of decomposition processes between the formate and malonate |
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| Affiliation: | 1. Department of Applied Science, Haldia Institute of Technology, Haldia, 721657, India;2. Department of Condensed Matter Physics and Material Science, S.N. Bose National Centre for Basic Sciences, Block JD, Sector 3, Salt Lake, Kolkata, 700106, India;1. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 1-1 Katahira, 2-chome, Aoba-ku, Sendai 980-8577, Japan;2. Department of Nuclear Engineering, Kyoto University, Kyoto Daigaku-Katsura, Nishikyo, Kyoto 615-8530, Japan;1. Czestochowa University of Technology, Institute of Computational Intelligence, Al. Armii Krajowej 36, 42-201 Czestochowa, Poland;2. Czestochowa University of Technology, Institute of Physics, Al. Armii Krajowej 19, 42-201 Czestochowa, Poland;1. Reprocessing Group, Indira Gandhi Center for Atomic Research, Kalpakkam, Tamilnadu 603102, India;2. Institute of Chemical Technology, Matunga, Mumbai, India;3. HBNI, Mumbai, India;1. Research Center for Green Fine Chemicals, Korea Research Institute of Chemical Technology, Ulsan 44412, Republic of Korea;2. School of Applied Chemistry, Kyungpook National University (KNU), Daegu 41566, Republic of Korea;3. Department of Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea |
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| Abstract: | The thermogravimetric curves of Fe(II) formate dihydrate, Fe(for)2 · 2H2O, and Fe(II) malonate dihydrate, Fe(mal) · 2H2O, in an argon atmosphere were obtained. The products at each decomposition stage were determined by Mössbauer spectroscopy, IR, powder X-ray analysis and gas chromatography. The dehydration of Fe(for)2 · 2H2O took place in two steps to form an anhydrous salt in the crystalline state, while Fe(mal) · 2H2O lost 2 mole of H2O in one step to form an anhydrous salt in the amorphous state. The decomposition processes of Fe(for)2 and Fe(mal) were represented as Fe(for)2→Fe3O4→FeO and Fe(mal)→FeO→α-Fe, respectively. |
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