Thermal decomposition of metal methanesulfonates in air |
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Authors: | M Wang Z G Song H Jiang H Gong |
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Institution: | (1) College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, 121000, People’s Republic of China;(2) Center for Science & Technology Experiment, Bohai University, Jinzhou, 121000, People’s Republic of China;(3) Liaoning Shihua University, Fushun, 113001, People’s Republic of China |
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Abstract: | The thermal decompositions of dehydrated or anhydrous bivalent transition metal (Mn, Fe, Co, Ni, Cu, Zn, Cd) and alkali rare
metal (Mg, Ca, Sr, Ba) methanesulfonates were studied by TG/DTG, IR and XRD techniques in dynamic Air at 250–850 °C. The initial
decomposition temperatures were calculated from TG curves for each compound, which show the onsets of mass loss of methanesulfonates
were above 400 °C. For transition metal methanesulfonates, the pyrolysis products at 850 °C were metal oxides. For alkali
rare metal methanesulfonates, the pyrolysis products at 850 °C of Sr and Ba methanesulfonates were sulphates, while those
of Mg and Ca methanesulfonate were mixtures of sulphate and oxide. |
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