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Solubility Measurement and Thermodynamic Correlation of Diacetone Acrylamide in 15 Pure Solvents from 272.05 to 323.65 K
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2021-12-27 , DOI: 10.1021/acs.jced.1c00704
Kui Wu 1 , Xiaofang Li 2 , Lingfeng Xu 1 , Runlin Han 1 , Xiaobing Liu 1 , Yajun Li 3 , Dingwa Zhang 1 , Yan Sui 1
Affiliation  

For the design, optimization, and control of the solution crystallization process of diacetone acrylamide (DAAM), solid–liquid equilibrium data in various solvents are critical. In this work, the solubility of DAAM in 15 pure solvents, such as methanol, ethanol, n-propanol, isopropanol, n-butanol, 1-hexanol, isobutanol, n-pentanol, isopentanol, 2-butanone, acetone, ethyl acetate, 2-pentanone, acetonitrile, methyl acetate, and ethyl formate, is analyzed by a gravimetric method under ambient pressure and temperatures ranging from 272.05 to 323.65 K. The solubility values in all of the solvents are positively correlated with temperature. The solubility of DAAM can be satisfactorily correlated by the Apelblat equation, λh equation, nonrandom two-liquid (NRTL) model, and Wilson model, and the calculated solubility agrees well with the measured results. The obtained maximum relative average deviation (RAD) and root-mean-square deviation (RMSD) are 2.44 × 10–2 (n-propanol, NRTL model) and 2.40 × 10–2 (methanol, λh equation), respectively. The most suitable model is the Apelblat equation.

中文翻译:

双丙酮丙烯酰胺在 272.05 至 323.65 K 的 15 种纯溶剂中的溶解度测量和热力学相关性

对于双丙酮丙烯酰胺 (DAAM) 溶液结晶过程的设计、优化和控制,各种溶剂中的固液平衡数据至关重要。在这项工作中,DAAM 在 15 种纯溶剂中的溶解度,如甲醇、乙醇、正丙醇、异丙醇、丁醇、1-己醇、异丁醇、戊醇、异戊醇、2-丁酮、丙酮、乙酸乙酯、在环境压力和 272.05 至 323.65 K 的温度范围内,通过重量法分析 2-戊酮、乙腈、乙酸甲酯和甲酸乙酯。在所有溶剂中的溶解度值与温度呈正相关。DAAM 的溶解度可以通过 Apelblat 方程得到令人满意的关联,λ h方程、非随机二液(NRTL)模型和威尔逊模型,计算的溶解度与实测结果吻合较好。获得的最大相对平均偏差 (RAD) 和均方根偏差 (RMSD) 分别为 2.44 × 10 –2正丙醇,NRTL 模型)和 2.40 × 10 –2(甲醇,λh 方程)。最合适的模型是 Apelblat 方程。
更新日期:2022-01-13
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