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克拉维酸在乙酸乙酯中的稳定性

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Indexed by:期刊论文

Date of Publication:2017-03-21

Journal:高校化学工程学报

Included Journals:EI、CSCD、Scopus

Volume:31

Issue:2

Page Number:270-275

ISSN No.:1003-9015

Key Words:克拉维酸;乙酸乙酯;降解动力学;降解热力学;稳定性

Abstract:为了研究克拉维酸在乙酸乙酯中的稳定性,选用生产中的乙酸乙酯脱色液为研究材料,配制不同水分的克拉维酸乙酸乙酯溶液,在不同温度下进行降解实验,通过数据拟合和动力学、热力学理论分析,获得克拉维酸降解动力学和热力学参数,如降解速率常数、半衰期、反应活化能、焓变和自由能等.结果表明,乙酸乙酯中克拉维酸的稳定性与含水量密切相关,增加含水量会加快降解速率,降解反应是一个吸热非自发反应.

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