Solubility of Benzoin in Six Monosolvents and in Some
Binary Solvent Mixtures at Various Temperatures
Posted on 2017-08-22 - 20:05
The
solubility of benzoin in monosolvents (acetone, ethyl acetate,
methanol, ethanol, 1-propanol, and 1-butanol) and binary solvent mixtures
(ethyl acetate + methanol, ethyl acetate + ethanol) was measured using
UV–vis spectroscopy at temperatures ranging from 283.15 K to
323.15 K. It can be seen from the data that the solubility of benzoin
increases expectedly as temperature increases in a given solvent or
solvent mixture, the solubility in acetone is maximum among six monosolvents
which could be well explained by the existence of strong H-bonds,
rather than the “like dissolves like” rule. In binary
solvent mixtures, the solubility reaches maximum when the mole fraction
of methanol is 0.1 in ethyl acetate + methanol mixed solvents, while
the maximum exhibits at 0.2 of mole fraction of ethanol in ethyl acetate
+ ethanol. The solubility parameter was interpreted as the cosolvency
of benzoin solubility in binary solvent mixtures. The solubility data
were correlated by modified Apelbalt equation, CNIBS/R-K equation,
λh equation, Jouyban–Acree model, and
Van’t–JA equation. Mixing thermodynamic properties were
further calculated and discussed regarding their roles in dissolution
and solubility.
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Yang, Yang; Tang, Weiwei; Li, Xiaona; Han, Dandan; Liu, Yumin; Du, Shichao; et al. (2017). Solubility of Benzoin in Six Monosolvents and in Some
Binary Solvent Mixtures at Various Temperatures. ACS Publications. Collection. https://doi.org/10.1021/acs.jced.7b00238
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AUTHORS (9)
YY
Yang Yang
WT
Weiwei Tang
XL
Xiaona Li
DH
Dandan Han
YL
Yumin Liu
SD
Shichao Du
TZ
Teng Zhang
SL
Shiyuan Liu
JG
Junbo Gong