【摘要】 提出溶液结晶第3亚稳区的概念,并对NaNO₃、KClO₃、K₂Cr₂O₇及H₃BO₃水溶液的第3亚稳区宽度进行测定,发现第3亚稳区宽度比第1及第2亚稳区要宽得多,是更为接近均相成核时的亚稳区.将描述均相成核的经典成核理论应用于第3亚稳区的计算,得到了用其它方法很难得到的固液界面张力σ、临界核半径r及临界核所含溶质分子数i.更多还原

【Abstract】 The concept of "the third metastable zone" of crystallizaton from aqueous solution is proposed in this paper. The width of the metastable zone is found much wider than the first one and the second one by measuring a few kinds of aqueous solution of salts. In addition, the solid -liquid interfacial tension σ, the radius of critical nucleus r* and the number of molecules in a critical nucleus i* are obtained by processing the experiment data with classical homogeneous nucleation theory.更多还原