Abstract
Precise understandings of hydration and dehydration processes in crystallization processes are prerequisites for deeper insights into fundamentals of crystal growth in aqueous solutions. In this review, we present the great potentialities of thermodynamic and kinetic analyses of the dependence of solubilities and crystal-growth-rates on pressure on experimentally accessible information of hydration and dehydration processes in crystallization processes. The dependence of solubility of crystals on pressure provides molar volume change of dissolution. Positive and negative slopes of solubility curves with pressure result in the decrease and increase in the molar volume of solutes during dissolution processes, respectively. Activation volumes during solute incorporation processes at kink sites are calculated using the dependence of step kinetic constant on pressure. In practice, solubilities of alkali halide, amino acid, and protein crystals, and step velocity of glucose isomerase crystals are discussed.
