Application of Radioactive Isotopes in the Study of Transition Temperature-II.

In continuation of our previous work1, in this line a guest component from carrier-free state to a finite concentration has been under investigation. Same transition temperature has been found in both these extreme concentrations. The study in details gives further support to the findings already arrived at that transition temperature of a guest component can be determined by measuring homogeneous distribution factors (D) at different temperatures with a morphologically analogous host having greater range of stability. It has been found that monoclinic cobalt sulphate exists in two forms like zinc sulphate monoclinic). Transition temperatures of the two forms of monoclinic cobalt sulphate are respectively 30° ±0.5°, 47° ± 0.5°, The new method has been applied to find out the transition temperatures of thus far unknown orthorhombic CoSO1.7H2O and that of 3 MnSO4.8H2O. The transition points have been found to be 18° and 31° respectively