Thermal and kinetic study of nickel trifluoromethanesulphonate, trifluoroacetate and acetate

Autor:	F. M. M. Borges, Dulce Maria de Araújo Melo, Hiléia K.S. Souza, E. A. Sousa, H. Scatena, Maria D. M. Paiva
Rok vydání:	2008
Předmět:	Thermogravimetric analysis Nickel Chemistry Kinetics Inorganic chemistry Non-blocking I/O chemistry.chemical_element Thermal stability Physical and Theoretical Chemistry Condensed Matter Physics Thermal analysis Microanalysis Trifluoromethanesulfonate
Zdroj:	Journal of Thermal Analysis and Calorimetry. 93:959-962
ISSN:	1572-8943 1388-6150
DOI:	10.1007/s10973-007-8633-3
Popis:	The reason of comparing thermal behaviour and kinetics of some nickel compounds, is justified by the influence of anion on it, besides supplying information on the stability of the salts. In this work, Ni(TMS)2·6H2O, Ni(TFA)2·3H2O and Ni(Ac)2·2H2O, were synthesized and characterized by microanalysis, atomic absorption molar, conductance and thermal analysis. Thermogravimetric curves indicate that the decomposition of the salts occurs in the range 295–1169 K and the NiO is the final residue. Non-isothermal kinetic evaluation from thermogravimetric data was used to determine energies of activation and pre-exponential factors.
Databáze:	OpenAIRE
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