徳島大学 教育・研究者情報データベース(EDB)

1. 徳島大学.大学院ソシオテクノサイエンス研究部.ライフシステム部門.物質機能化学(〜2016年3月31日)

1. 鈴木 良尚([徳島大学.大学院社会産業理工学研究部.理工学域.応用化学系.物質機能化学分野]/[徳島大学.理工学部.理工学科.応用化学システムコース.物質機能化学講座])

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2. 藤原 貴久([徳島大学.総合科学部])

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(英) Hydration / Dehydration Processes from the Viewpoints of Effects of Pressure on Solubilities and Growth Rates of Crystals

(日) 溶解度・結晶成長速度の圧力依存性から見る水和・脱水和プロセス

(英) 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 hydration 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.