Abstract:
Long-term oscillations of a solution-crystal phase transition in the disperse KCl-NaCl-H$_2$O system have been detected. Under steady-state conditions, multiple evaporation of droplets has been observed before the formation of a crystal with subsequent condensation, which completely recovers the dimension of a droplet. An interpretation of the observed phenomenon has been proposed on the basis of the Kelvin and Ostwald–Freundlich size effects, Raoult's law, and features of the phase diagram of the KCl-NaCl system.