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  • 1 Bohai University College of Chemistry and Chemical Engineering Jinzhou 121000 People’s Republic of China
  • | 2 Bohai University Center for Science & Technology Experiment 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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