Thermal Stability and Kinetics of Thermal Decomposition of Salvianolic Acid B

被引：3

作者：

Wang Shaoxu ^{[1
]}

Tan Zhicheng ^{[2
,3
]}

Che Ruxin ^{[1
]}

Li Yansheng ^{[1
]}

机构：

[1] Dalian Jiaotong Univ, Coll Environm Sci & Engn, Dalian 116028, Peoples R China

[2] Chinese Acad Sci, Dalian Inst Chem Phys, China Ion Liquid Lab, Dalian 116023, Peoples R China

[3] Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

来源：

ACTA CHIMICA SINICA | 2012年 / 70卷 / 02期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

salvianolic acid B; process of thermal decomposition; kinetics of thermal analysis; TG-DTG; TG-ANALYSIS; DEHYDRATION; COPPER(II); MECHANISM; CHINESE;

D O I：

10.6023/A1104075

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The processes of thermal decomposition of salvianolic acid B were studied by TG-DTG. The TG-DTG curves showed that the process of mass loss of the substance proceeded in two steps. The first step could be attributed to the expulsion of water in the temperature range of 305 similar to 373 K. The second step was corresponding to the large scale degradation of salvianolic acid B in the temperature range of 413 similar to 864 K. The activation energies E of thermal degradation process of three stages were obtained by Friedman method and Ozawa-Flynn-Wall method. According to 15 mechanism functions, the possible kinetic model of thermal degradation process was estimated to be Fn-F2-F1 through the multiple linear regression method.

引用

页码：212 / 216

页数：5

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