Key Words:solid-liquid equilibrium; solubility; mixed solvents; dinitrotoluent
Abstract:The solubility data of 2,4-dinitrotoluent (2,4-DNT) in mixed solvents of water and nitric acid with nitric acid mass fraction vary from 0.1 to 0.5 were determined at 283.15-323.15K by the equilibrium method. It indicates that the solubility increases with the increase of temperature and decreases with the decrease of mass fraction of nitric acid. The experimental data were correlated with A-h equation, Apelblat equation and C.L.Yaws equation, average relative deviations of which between the calculated values and the experimental values of 25 data points in 5 systems were 3.666%, 2.737% and 3.121% respectively. The results show that three equations could well correlate the solubility data of 2,4-DNT in above electrolyte systems and the accuracy of the correlation can satisfy the engineering requirement.
Volume:233-235
Translation or Not:no