RELATIONSHIP BETWEEN SOLUTION SHEAR VISCOSITY AND DENSITY AT THE SATURATION POINT

Properties of supersaturated solutions such as the density, viscosity, and solute diffusivity are dependent on the solute concentration. The diffusion-boundary-layer equations are derived and solved for the nat ural convection case with the viscosity and density dependent on the s olute concentration. The solution obtained demonstrates that, at the v icinity of the saturation concentration c(s), there is a non-trivial d ependence of the solution viscosity eta on its density rho: eta(c(s)) = eta(rho(s)) alpha rho(s)(1/2),where rho(s) = rho(c(s)). This result has been verified in experiments with aqueous solutions of inorganic a nd organic salts.