Volumetric and viscometric study of molecular interactions in the mixtures of some secondary alcohols with equimolar mixture of ethanol and N,N-dimethylacetamide at 308.15Â K

► Volumetric and viscometric studies of liquid mixtures are useful in pharmacy field. ► Molecular interactions in ethanol and N,N-dimethylacetamide with alcohols are studied. ► Weak interactions observed due to rupture of hydrogen bond between alcohol molecules. ► Measured viscosity values compared with theoretical values obtained by polynomials.