文献类型：期刊文献

英文题名：Solid-Liquid Equilibrium for Binary Systems Containing Carboxylic Acids and Acetic Anhydride Obtained by Differential Scanning Calorimetry

作者：He, Jinghao[1]; Dong, Dejun[2]; Yang, Fan[1]; Sun, Lihui[2]; Yu, Xing[2]; Yang, Zhanping[2]; Zhu, Xuedong[1]; Liang, Yinchun[2]

机构：[1] East China University of Science and Technology, Shanghai, China; [2] Kunming Cellulose Fibers Company Technical Center, Nantong, Zhuhai, Nantong, China

年份：2020

卷号：65

期号：2

起止页码：532

外文期刊名：Journal of Chemical and Engineering Data

收录：EI(收录号：20200508109362)

语种：英文

外文关键词：Phase diagrams - Saturated fatty acids - Propionic acid - Binary mixtures - Butyric acid - Liquids - Differential scanning calorimetry - Calorimeters

摘要：In the present study, the solid-liquid phase diagrams of four systems acetic acid + acetic anhydride, propionic acid + acetic anhydride, butyric acid + acetic anhydride, and pentanoic acid + acetic anhydride were determined by differential scanning calorimetry at atmospheric pre?ure. The experimental results illustrated that these systems showed a eutectic behavior. The experimental data were compared with predicted data acquired by solving the phase equilibrium equations using an algorithm. The liquid-phase activity coefficients were calculated by the Wilson and nonrandom two-liquid activity coefficient models. The results show that the approaches used for the calculated system equilibrium was capable to accurately describe the eutectic solid-liquid phase diagrams of the above-mentioned systems. Copyright ? 2020 American Chemical Society.