An investigation of the solubility of glycine-alcohol (ethanol/1-propanol)-NaCl-H2O system was carried out by dynamic method over the temperature range from 283.15-333.15 K. The studied systems were glycine-alcohol (ethanol/1-propanol)-H2O , glycine-ethanol-NaCl (0.5, 1.0, 2.0 mol*kg 1 water)-H2O, glycine-1-propanol-NaCl (0.5 mol*kg 1 water)-H2O, and NaCl-alcohol (ethanol/1-propanol)-glycine (0.25 mol*kg 1 water )-H2O. The solubilities of glycine and NaCl were found to increase with increasing temperature and decrease with increasing concentration of alcohols. A chemical model was successfully developed based on mixed solvent electrolyte (MSE) model by regressing experimental and literature solubilities data of glycine in the glycine-ethanol-NaCl-H2O and glycine-1-propanol-H2O systems. New sets of middle range and UNIQUAC interaction parameters were obtained. The average absolute deviation between regressed and experimental values was found to be less than 7%.
Compounds
#
Formula
Name
1
C2H5NO2
2-aminoacetic acid
2
C3H8O
propan-1-ol
3
C2H6O
ethanol
4
H2O
water
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.