Application of Thermogravimetry to Study the Kinetics and Stability of Porphyrin Copper-sodium of Ephedra

Application of Thermogravimetry to Study the Kinetics and Stability of Porphyrin Copper-sodium of Ephedra

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摘要 Thermogravimetry was used to study the non-isothermal decomposition kinetics and the stability of porphyrin copper-sodium from ephedra. The kinetic equation for the second step can be expressed as . The kinetic compensation effect is found to be: InA=0. 2468E a ?8. 0513.Ea is 206. 61 kJ/mol. The results show that porphyrin copper-sodium has a high activation energy and good stability. Thermogravimetry was used to study the non-isothermal decomposition kinetics and the stability of porphyrin copper-sodium from ephedra. The kinetic equation for the second step can be expressed as . The kinetic compensation effect is found to be: InA=0. 2468E a ?8. 0513.Ea is 206. 61 kJ/mol. The results show that porphyrin copper-sodium has a high activation energy and good stability.

作者 Zhang Lian-ru Yang Tian-ming Zou Guo-lin

出处《Wuhan University Journal of Natural Sciences》 EI CAS 2000年第3期357-360,共4页 武汉大学学报（自然科学英文版）

关键词 porphyrin copper-sodium TG-DTG activation energy non-isothermal kinetics porphyrin copper-sodium TG-DTG activation energy non-isothermal kinetics

分类号 O657.99 [理学—分析化学]

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二级参考文献6

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Wuhan University Journal of Natural Sciences

2000年第3期

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Application of Thermogravimetry to Study the Kinetics and Stability of Porphyrin Copper-sodium of Ephedra

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