Densities and viscosities of the binary aqueous mixtures of tetrahydrofuran and 1,2-dimethoxyethane at 298, 308 and 318 K

Bijan Das, Roy Mahendra Nath, K Dilip, Hazra
1994 Indian Journal of Chemical Technology   unpublished
The densities and viscosities have been determined for the binary systems of water with tetrahyd-, rofuran and 1,2-dimethoxyethane at 298, 308 and 31~ K. From the experimental results, the exces~ '" molar volumes (VE) and the deviation of viscosity from the mole fraction average (11") have been derived. These are explained on the basi~ of molecular interactions between the components of the mixtures. There has been a recent upsurge of interest I-I in The kinematic viscosities were measured hy
more » ... were measured hy the thermodynamic properties of binary liquid means of a suspended Uhhelohde-type viscometer mixtures. These have been extensively used to oh-with a flow time of water of about 539 s at 298 tain information on the intermolecular interac-K. Temperatur~ control during viscosity measure-tions and geometrical effects in these systems-l. ments was ::I: 0.01 K. The precision of the viscos-We have presented here the densities and viscosit-ity measurements was ::I: 0.05%. The kinematic ies for tetrahydrofuran-water and 1,2-dimethoxy-viscosities (v) were converted into the absolute