SYNTHESIS AND THERMAL INVESTIGATIONS OF K2M(IO3)4-CENTER-DOT-2H2O WHERE M2+ IS CO2+, NI2+, ZN2+ .1.

New methods were applied in the synthesis of double salt iodates of th e type K2M(IO3)4 . 2H2O (where Me is Co2+, Ni2+, Zn2+). Their thermal and calorimetric behaviour were investigated by DTA, TG and DSC. Simul taneous dehydration and decomposition of the binary salt give simple i odites. Mixtures of KIO3 and Me(IO3)2 were melted, followed by the lat ter's decomposition along familiar pathways. The DELTAH(ph,tr)theta va lues were recorded from the DSC curves, while the TG curves were proce ssed by the methods of formal kinetics, and the kinetic parameters E and A calculated. The type of kinetic equation for the dehydration pro cess was also determined.