Crystallization and precipitation: The optimal supersaturation

In this article optimal supersaturation for cooling and evaporation crystal lization are presented. This information is based on a simplified model whi ch describes the metastable zone width of activated nucleation. The model a ssumes that the nucleation step is very fast and the occurrence of the show er of nuclei which is used to define the metastable zone width is caused by the growth of activated nuclei. In future new sensors for the measurement of supersaturation will help to operate batch crystallizers at the optimal supersaturation during the entire batch time.