Thermodynamic and Physicochemical Studies of Polyethylene Glycols in Water-Soluble Tetrasodium EDTA Solution Depending on Temperatures

With an Anton Paar DSA 5000 M apparatus, densities along with the speed of sound of a liquid mixture containing polyethylene glycols 200 and 400 in aqueous tetrasodium ethylenediaminetetraacetic acid at concentrations of 0.01, 0.02, and 0.03 mol center dot kg(-1) were measured at varied temperature ranges of 288.15, 298.15, 308.15, and 318.15 K. Different acoustics and physicochemical characteristics were computed using the results of the experiment, including apparent molar properties, partial along with isentropic compression and transfer properties. These calculations had given additional information about the intermolecular reaction in a combination consisting of tetrasodium ethylenediaminetetraacetic acid with water and glycols (PEG 200/PEG 400). Solute-solvent, hydrophilic-hydrophilic, dipole-dipole, and ionic-hydrophilic interactions were all investigated in the mixture by pair and triplet coefficients with empirical constants and expansibilities.