摘要
采用激光测量装置在不同温度下研究了吡虫啉在乙醇、丙酮、丁酮、二氯甲烷、1,2-二氯乙烷中的溶解和超溶解特性,得到了吡虫啉在有机溶剂中的结晶介稳区.吡虫啉在有机溶剂中的溶解度、超溶解度和介稳区宽度Δw均随温度的升高而增加,且吡虫啉在丁酮中的溶解度最大.在相同转速下,吡虫啉在丁酮、丙酮、二氯甲烷、1,2-二氯乙烷和乙醇中的介稳区宽度ΔT分别为4.4,5.8,1.2,1.8,2.4 K左右.
The saturate and supersaturate characteristics of imidacloprid in ethanol, acetone, 2- butanone, dichloromethane and 1,2-dichoroethane at different temperatures are investigated by using laser detection technique. The crystallization metastable zone width of imidacloprid in five solvents is also determined. The solubility, supersolubility and crystallization metastable zone width （Aw） of imidacloprid in five solvents increase with temperature rising, and those properties of imidacloprid in 2-butanone are the highest than other solvents. The crystallization metastable zone width （△） of imidacloprid is about 4. 4,5.8,1.2,1.8 and 2.4 K in 2-butanone,acetone,dichloromethane, 1,2-dichoroethane and ethanol at the same agitation rate, respectively.
出处
《郑州大学学报（理学版）》
CAS
北大核心
2010年第4期67-70,共4页
Journal of Zhengzhou University:Natural Science Edition
基金
河南省科技攻关资助项目
编号092102210177
关键词
吡虫啉
溶解度
超溶解度
结晶
介稳区
imidacloprid
solubility
supersolubility
crystallization
metastable zone
