Volumetric properties of acetaminophen in aqueous ionic liquid, 1-butyle-3-methylimidazolium bromide, solutions at different temperatures

Densities of acetaminophen in 0.1, 0.2, 0.3 and 0.4 mol.kg−1aqueous solution of ionic liquid, 1-butyle-3-methylimidazolium bromide ([BMIm]Br), against the molality of acetaminophen have been measured at T = (293.15 to308.15) K. Using the density data, standard partial molar volume ( 0 V )have been calculated. These parameters havebeen used to calculation transfer volume for acetaminophen from water to aqueous ionic liquid solution. The transferquantities are positive and increase with increasing molality of the ionic liquid and decrease with temperature whichindicate the dominance of ion or hydrophilic–hydrophilic interactions between [BMIm]Br and acetaminophen anddehydration effect of ionic liquid on the acetaminophen solutions.

کلیدواژه ها:

Acetaminophen ، Ionic liquid ، Apparent molar volume