Add time:08/09/2019         Source:sciencedirect.com

The thermolysis of K3CrO8 is characterized by autocatalytic-kinetics and the mean values of effective Arrhenius parameters are E = 69 ± 12 kJ mol−1, log A = 7 ± 2 s−1. Mass spectrometer, microscopic, X-ray diffraction and particularly ESR-sprectroscopic studies, as well as specific surface measurements, have led to the conclusion that K3CrO8 thermolysis is characterized by nuclei multiplication through the entire crystal bulk. Defects in the crystal volume appearing in the induction period of thermolysis or in γ-irradiated K3CrO8 make the most important contribution to nucleation. K3CrO8 is found to be promising as a model object in topochemistry.

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