摘要
The experiments of single crystals growth for vitamin C were carried out on growth rates of different orientations (,and ).Under various temperatures and supersaturations, the directional growth rates were measured The kinetic parameters were regressed by the least square method and verified by significance test In aqueous and ethanol aqueous solution, the kinetic parameters changed greatly, and the controlling step of growth differed from each other So crystals in aqueous solution are often in rod form,while always in plate form in water ethanol The effects of solvent on directional growth were analyzed according to steric effect of solvent molecules and hydrogen bond interaction at solution crystal
The experiments of single crystals growth for vitamin C were carried out on growth rates of different orientations (,and ).Under various temperatures and supersaturations, the directional growth rates were measured The kinetic parameters were regressed by the least square method and verified by significance test In aqueous and ethanol aqueous solution, the kinetic parameters changed greatly, and the controlling step of growth differed from each other So crystals in aqueous solution are often in rod form,while always in plate form in water ethanol The effects of solvent on directional growth were analyzed according to steric effect of solvent molecules and hydrogen bond interaction at solution crystal interface
出处
《化工学报》
EI
CAS
CSCD
北大核心
2003年第8期1176-1178,共3页
CIESC Journal
基金
中国科学院王宽诚基金资助项目
关键词
单晶
生长动力学
维生素C
溶剂
single crystal, growth kinetics, vitamin C, solvent