Published September 2015 | Version v1
Journal article Metadata-only

Solubility of daidzin in different organic solvents and (ethyl alcohol + water) mixed solvents

Creators

  • 1. Department of Chemical Engineering, Nanchang University, Nanchang 330031 (China)
  • 2. School of Foreign Language, Nanchang University, Nanchang 330031 (China)

Description

Highlights: • The solubilities of daidzin were measured in various solvents. • The solubility data were correlated by three models. • The thermodynamic properties of the dissolution process were also determined. - Abstract: The solubility of daidzin in different organic solvents and (ethyl alcohol + water) mixed solvents was measured by high performance liquid chromatography (HPLC) analysis method from T = (283.2 to 323.2) K at atmosphere pressure. The results show that at higher temperature more daidzin dissolves, and moreover, the solubility increases with the ethyl alcohol mole fraction increase in the (ethyl alcohol + water) mixed solvents. The experimental solubility values were correlated by a simplified thermodynamic equation, λh equation and modified Apelblat equation. Based on the solubility of daidzin, the enthalpy and entropy of solution were also evaluated by van't Hoff equation. The results illustrated that the dissolution process of daidzin is endothermic and entropy driven

Availability note (English)

Available from http://dx.doi.org/10.1016/j.jct.2015.04.025

Additional details

Identifiers

DOI
10.1016/j.jct.2015.04.025;
PII
S0021-9614(15)00117-2;

Publishing Information

Journal Title
Journal of Chemical Thermodynamics
Journal Volume
88
Journal Page Range
p. 85-89
ISSN
0021-9614
CODEN
JCTDAF

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47043187
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ATMOSPHERES; CORRELATIONS; DISSOLUTION; ENTHALPY; ENTROPY; ETHANOL; HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY; MIXED SOLVENTS; ORGANIC SOLVENTS; SOLUBILITY; TEMPERATURE DEPENDENCE; THERMODYNAMICS
Descriptors DEC
ALCOHOLS; CHROMATOGRAPHY; DISPERSIONS; HYDROXY COMPOUNDS; LIQUID COLUMN CHROMATOGRAPHY; MIXTURES; NONAQUEOUS SOLVENTS; ORGANIC COMPOUNDS; PHYSICAL PROPERTIES; SEPARATION PROCESSES; SOLVENTS; THERMODYNAMIC PROPERTIES

Optional Information

Copyright
Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.