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Convective Instabilities and Dynamic Structures in Phase-Separation Processes of Binary Liquid Mixtures

In pressure jump experiments on the phase separation of binary liquid mixtures of cyclohexane + methanol, an organisation of the finely dispersed precipitate could be observed to give a macroscopic dissipative structure during the early stages of the ageing process of the newly formed phase. Preliminary phenomenological investigations suggest a mechanism similar to the Rayleigh-Benard instability (RBI) and the Soret-driven instability (SDI).