常温常压下反式茴香脑-对茴香醛超额焓的测定及关联
Determination and Correlation of Trans-Anethole-p-Anisaldehyde Excess Enthalpy at Room Temperature under Atmospheric Pressure
赵金和 1蒋火军 1张艳芳 1李亮 1方利娟2
作者信息
- 1. 百色学院 化学与环境工程学院,广西 百色 533000
- 2. 百色学院 农业与食品工程学院,广西 百色 533000
- 折叠
摘要
针对八角茴香油主要组分部分热力学数据缺失,常压下利用C80型塞塔拉姆微量量热仪测定了反式茴香脑(1)-对茴香醛(2)二元体系在25、30、35℃的超额焓.实验数据采用Redlich-Kister方程式进行关联,相对偏差较小.二元体系的超额焓在全浓度范围内均为正值,其最大值在摩尔分数 ݔଵ=0.5 附近,温度对超额焓有一定的影响,超额焓随温度的升高而降低.
Abstract
The excess enthalpy of trans-anisole(1)-p-anisaldehyde(2)binary system at 25℃,30℃and 35℃was determined by C80 Setharam microcalorimeter under atmospheric pressure in view of the lack of thermodynamic data of the main components of star anise oil.The experimental data were correlated by Redlich-Kister equation with small relative deviation.The excess of binary system was positive in the whole concentration range,and its maximum value was around ݔଵ=0.5.Temperature had a certain effect on the excess enthalpy,and the excess enthalpy decreased with the increase of temperature.
关键词
对茴香醛/反式茴香脑/超额焓/微量量热仪/关联/热力学Key words
p-Anisaldehyde/Trans-anethole/Excess enthalpy/Microcalorimeter/Correlation/Thermodynamics引用本文复制引用
基金项目
2021年度百色市科学研究与技术开发科技计划项目(百科20211822)
出版年
2024
NETL
NSTL
万方数据