Crystal Aging, Crystal Habit and Crystal Purification

水晶老化、水晶习性和水晶净化

• 批准号: 8508387
• 负责人: Allan Myerson
• 金额: $ 11.21万
• 依托单位: Polytechnic University of New York
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1985
• 资助国家: 美国
• 起止时间: 1985-09-01 至 1988-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8508387&HistoricalAwards=false
• 关键词: Crystal; Aging; Habit; Purification

The aging of crystals--i.e., the structural changes which occur in crystals after nucleation and growth have occurred--will be studied. During aging, recrystallization occurs rapidly in imperfect crystals of sparingly soluble materials resulting in significant changes in crystal habit and purity. In this study, the aging of terephthalic acid crystals in water, acetic acid, and DMSO will be experimentally examined. Theoretical studies to attempt to predict the aging rate, mechanism, and final crystal shape and purity also will be conducted.

晶体的衰老 - 即将发生成核和生长后晶体中发生的结构变化 - 将被研究。 在衰老过程中，重结晶迅速发生在不可溶解材料的不完美晶体中，从而导致晶体习惯和纯度发生显着变化。 在这项研究中，将检查水，乙酸和DMSO中的苯甲酸晶体的衰老。 还将进行试图预测衰老率，机制和最终晶体形状和纯度的理论研究。