Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 280, Issue -, Pages 175-181Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2019.02.023
Keywords
Solubility; Dapsone; Correlation; Mixing thermodynamics
Funding
- National Natural Science Foundation of China [NNSFC 21808159, NNSFC 21808158]
- Innovative Group Project [21621004]
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The solubility of dapsone (DAP) in twelve mono solvents (methanol, ethanol, 1-butanol, 2-butanol, n-pentanol, isobutanol, methyl acetate, ethyl acetate, ethyl propionate, isopropyl acetate, butyl acetate, acetone) was determined at the temperature from 283.15 to 323.15K using a gravimetric method. The measurement results show the solubility are positively correlated with temperature. The accuracy of experimental results was examined by the modified Apelblat model, lambda h equation and NRTL model. They show good correlation with all the ARD% lower than 5%. Furthermore, the mixing thermodynamic properties of DAP were study in these twelve solvents based on the nonrandom two-liquid model for further understanding of the mixing process. (C) 2019 Elsevier B.V. All rights reserved.
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