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  • 1 Instituto de Química, UNESP, CP 355, Araraquara, SP, 14801-970, Brazil
  • | 2 Universidade Federal da Grande Dourados, UFGD, Rodovia-Itahum, km 12, Dourados, MS, 79804-970, Brazil
  • | 3 Instituto de Ciências Exatas e da Terra, Campus Pontal do Araguaia, UFMT, MT-100, Rodovia, MT, 78698-000, Brazil
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Abstract

Synthesis, characterization, and thermal behavior of transition metal oxamates, M(NH2C2O3)2·nH2O (M = Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II)), as well as the thermal behavior of oxamic acid and its sodium salt (NaNH2C2O3) were investigated employing simultaneous thermogravimetry and differential scanning calorimetry (TG-DSC), experimental and theoretical infrared spectroscopy, TG-DSC coupled to FTIR, elemental analysis and complexometry. The results led to information about the composition, dehydration, thermal stability, thermal decomposition, as well as of the gaseous products evolved during the thermal decomposition of these compounds in dynamic air and N2 atmospheres.

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