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Published on: September 9, 2016
Solubility of disodium 5'-guanylate heptahydrate in aqueous methanol mixtures
Bao-Shu Liu1, Hua Sun1, Jing-Kang Wang2
1College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, People's Republic of China; School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People's Republic of China.
Abstract:
The solubility of disodium 5'-guanylate heptahydrate (5'-GMPNa2) in binary aqueous methanol solvent mixtures with the temperature ranging from 278.15 to 323.15K was measured by a dynamic method with a laser monitoring observation technique. The solubility data were correlated with the Combined Nearly Ideal Binary Solvent/Redlich-Kister (CNIBS/R-K) model and the modified Jouyban-Acree model, respectively. For the ten groups of data studied, the CNIBS/R-K model was found to provide a more accurate mathematical representation of the experimental data, while the modified Jouyban-Acree model containing provisions for correlating both the solvent composition and temperature.
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