Journal of Chemical and Engineering Data, Vol.64, No.8, 3444-3449, 2019
Solubility Measurement and Thermodynamic Model Correlation of 5-Nitrosalicylaldehyde in Different Solvents
The solubility data of 5-nitrosalicylaldehyde in methanol, ethanol, n-propanol, isopropanol, 1-butanol, acetonitrile, acetone, cyclohexanone, ethyl acetate, 1,4-dioxane, toluene, and water were determined experimentally using the isothermal dissolution equilibrium method within the temperature range from 273.15 to 313.15 K under a pressure of 101.2 kPa. The solubility, in mole fraction, increased with a rise of temperature. At a certain temperature, these values decreased according to the following order: acetone > 1,4-dioxane > ethyl acetate > cyclohexanone > toluene > acetonitrile > methanol > ethanol > isopropanol > n-propanol > 1-butanol > water. Moreover, these solubility values were correlated by the modified Apelblat equation and the lambda h equation. The maximum values of root-mean-square deviation and relative average deviation were 3.25 x 10(-4) and 6.12%, respectively. In addition, the KAT-LSER model was applied to analyze the effect of the solute-solvent intermolecular interactions on the solubility in pure organic solvents.