화학공학소재연구정보센터
Journal of Chemical and Engineering Data, Vol.66, No.3, 1501-1507, 2021
Solubility Measurement and Data Correlation of Salicylanilide in 12 Pure Solvents at Temperatures Ranging from 283.15 to 323.15 K
The solubility of salicylanilide in 12 pure solvents including ethanol, n-propanol, isopropanol, n-butanol, n-pentanol, ethyl formate, methyl acetate, ethyl acetate, propyl acetate, isopropyl acetate, butyl acetate, and acetonitrile was measured using the gravimetric method at temperatures ranging from 283.15 to 323.15 K. The experimental results show that the solubility of salicylanilide is lower in alcohol than in ester solvents. In addition, the mole fraction solubility of salicylanilide in these selected solvents increases with the increase of temperature and presents the following order at a fixed temperature: ethanol > isopropanol > n-propanol > n-butanol > n-pentanol, methyl acetate > ethyl acetate > propyl acetate > isopropyl acetate > butyl acetate > ethyl formate > acetonitrile. Three models, including the modified Apelblat equation, the van't Hoff equation, and the lambda h equation, were applied to correlate the measured solubility data. The results indicate that the three models can predict the experimental values satisfactorily and the modified Apelblat equation is more appropriate to correlate the solubility data in 12 solvents.