摘要
应用线性变温法对薄荷醇的热失重谱图进行动力学处理，获得结果满意。与经典恒温法、积分法相对照，挥发逸散活化能分别为Ｅ＝８６．１５ｋＪ·ｍｏｌ１、Ｅ＝８８．６６ｋＪ·ｍｏｌ１、Ｅ＝５６．４０ｋＪ·ｍｏｌ１，室温挥发速率常数ｋ２０℃＝１．８７８×１０３ｍｉｎ１、ｋ２０℃＝２．３８５×１０３ｍｉｎ１。
The prediction of evaporation rate of menthol by linear non-isothermal,compared with that by classical isothermal method,integral method on the thermogravimetric analyzer,with the same batch of crystal sample.The activation energy of eveporation was found to be E =86.15kJ·mol -1 ,88.66kJ·mol -1 and 56.40kJ·mol -1 .The evaporation rate at roon temperature is found to be k 20℃ =1.878×10 -3 and 2.385×10 -3 ,respectively.
出处
《南京铁道医学院学报》
1997年第2期98-100,共3页
Journal of Nanjing Railway Medical College
关键词
热重法
线性变温法
薄荷醇
挥发速率
thermogravimetric analysis
linear non-isothermal method
menthol evaporation rate
estruction to adjecent tissue.
