The solubilities of L-malic acid in pure and mixture organic solvents were measured from 278.15 to 323.15 K using the laser monitoring observation system. The modified Apelblat equation, the semi-empirical Buchowski-Ksiazczak lambda-h equation and the Combined Nearly Ideal Binary Solvent/Redlich (CNIBS/R-K) equation were proposed to correlate the experimental data. In pure and mixed solvents, the 100RD (relative deviation) is less than 3.61 and 7.58, respectively, the 10^4 RMSD (root-mean-square deviations) is less than 3.07 and 2.28, respectively, so the equations selected in this work fit the data very well. Van't Hoff equation was used to predict the dissolution enthalpy and entropy of L-malic acid in the corresponding solvents.
Compounds
#
Formula
Name
1
C4H6O5
l-hydroxysuccinic acid
2
C2H6O
ethanol
3
C3H8O
propan-1-ol
4
C4H8O2
ethyl acetate
5
C2H3N
acetonitrile
6
C3H8O
propan-2-ol
7
C3H6O
acetone
8
C4H10O
butan-1-ol
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.