Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

ABSTRACT

The solubility determination of acetamiprid dissolved in thirteen pure solvents such as isobutanol, methanol, ethanol, n-butanol, isopropanol, acetone, ethylene glycol (EG), 1-methyl-2-pyrrolidinone (NMP), ethyl acetate, dimethyl sulfoxide (DMSO), 1,4-dioxane, N,N-dimethyl formamide (DMF) and water and binary liquid mixtures (ethanol + water) was carried out using the shake-flask method at the temperatures from 278.15 K to 318.15 K under local atmospheric pressure of 101.2 kPa. The observed values of mole fraction solubility were the highest in DMSO and the lowest in water. A linear solvation energy relationship analysis was carried out to reveal how much and what type intermolecular solvent-solvent and solute-solvent interactions were responsible for the solubility variation in these thirteen neat solvents. The results exhibited that the acetamiprid solubility in these thirteen mono-solvents depends significantly upon Hildebrand parameter and nonspecific dipolarity/polarizability interactions of the solvents. The experimental solubility data in neat solvents were correlated through the Apelblat equation; while in liquid mixtures, through the Apelblat-Jouyban-Acree model, the van't Hoff-Jouyban-Acree model and the Jouyban-Acree model. For the selected neat solvents, the largest values of relative average deviation and root-mean-square deviation were, respectively, 1.77 % and 36.2110-4; and for the mixtures, 5.15 % and 4.8110-4. In the (ethanol + water) mixtures, the log x12 values positively deviated from the average ones of log x12, which showed that the acetamiprid was preferentially solvated by the ethanol.