Parameters of viscous flow in dilute solutions of polyalkyl glycol ethers in secondary alcohols

► We calculated the void molar volume from volumetric and viscosimetric data. ► Two methodologies were applied to obtain partial molar volume at infinite dilution. ► Two methodologies permit to calculate partial molar volume at infinite dilution. ► Volumetric properties of two polyalkylglycol ethers in 2-alkanols.