Abstract
In this work, effect of different deep eutectic solvents (DES) based on choline chloride (ChCl) and dimethyl ammonium chloride (Dmac) as hydrogen bond acceptor and thiourea (Tio), glycerol (Gly), malonic acid (Mal) and urea as hydrogen bond donor on the thermodynamic and transport properties of glucose in aqueous solutions have been evaluated at T = 298.15 K. Viscosity, density and speed of sound data of the systems containing glucose in aqueous solutions of DES were measured in different mass percent of DES, wDES = (0.0010, 0.002, 0.0030, 0.0040). Apparent molar volume, apparent molar isentropic compressibility, transfer apparent molar volume and viscosity B-coefficient values of the systems studied were calculated using the experimental data. The results have been interpreted in terms of various solute–solvent interactions. The results indicate that the solute–solvent interactions in choline-based DESs should be stronger than that in the dimethyl ammonium-based DES and the most suitable DES to dehydrate of glucose is a choline chloride-glycerol eutectic mixture.
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