Excess molar volumes and viscosities of poly(ethylene glycol) 300 + water at different temperatures

Density was measured over the whole concentration range for the binary system of poly(ethylene glycol) 300 (PEG 300) + water at five temperatures from (298.15 to 318.15) K. The density (ρ  ) is fitted to calculate the excess molar volume (VmE) and viscosity deviation (Δη  ). The computed results are fitted to a Redlich–Kister equation to obtain the coefficients and estimate the standard deviations between the experimental and calculated quantities. The values of VmE for all mixtures are negative, while the values of Δη are positive over the entire composition range.

► Densities and excess volumes of PEG 300 + water at (298.15–318.15) K were listed.
► Viscosities of PEG 300 + water at (298.15–318.15) K were measured.
► Viscosity deviations of PEG 300 + water at (298.15–318.15) K were calculated.