2021/12/27 by Kui Wu, Xiaofang Li, Lingfeng Xu +5 · 7 citations
Chemical Engineering · Chemistry · Engineering · Materials Science · #Acetone #Acetonitrile #Acrylamide #Activity coefficient #Aqueous solution #Chemical and Physical Properties in Aqueous Solutions #Chemistry #Chromatography #Crystallization and Solubility Studies #Ethyl acetate #Gravimetric analysis #Isobutanol #Methanol #Methyl acetate #Non-random two-liquid model #Organic chemistry #Phase Equilibria and Thermodynamics #Polymer #Solubility #Thermodynamics #UNIQUAC
paper · doi:10.1021/acs.jced.1c00704
published in Journal of Chemical & Engineering Data 67(1), 257-266 (American Chemical Society)
openalex publication_date 2021/12/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
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, λ h 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.