A kinetic analysis (E*(deh),A) has been made of the dehydration processes of M(IO3)(2) . 6H(2)O (M is Ca2+, Sr2+), M(IO3)(2) . 4H(2)O (M is Mg2+, Co2+, Ni2+), M(IO3)(2) . 2H(2)O (M is Ni2+, Zn2+), M(IO3)(2) . H2O (M is Ca2+, Sr2+, Ba2+) and their deuterates on the basis of thermogravimetric data. The general differential method of non-isothermal kinetics was used. The most probable kinetic equation has been determined (F(alpha)), describing the mechanism of the individual stages of the dehydration for the different hydrates. A comparative analysis has been made of the kinetic data for each hydrate and deuterate pair.