Two Topics in Chemical Instabilities: I Periodic Precipitation Processes; II Resonances in Oscillatory Reactions and Glycolysis
In a series of experiments [1–4] we have investigated the periodic precipitation process known as Liesegang ring formation in which a sparingly soluble salt is precipitated in discontinuous bands during the diffusion of an electrolyte into a second electrolyte solution. We also performed experiments on instabilities in colloidal growth in which macroscopic structure arises from an electrolyte solution in the absence of concentration gradients. In our studies we were mainly concerned with the temporal development of Liesegang structures and the influence of the concentrations of the reagents on these spatial patterns.
KeywordsRing Location Marginal Stability Ring Formation Linear Stability Analysis Secondary Resonance
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