Density, Surface Tension, and Cloud Point of Aqueous Solutions of beta-Cyclodextrin-polyethylene Glycol
Journal of Chemical & Engineering Data(2014)
Abstract
The physical property data (density, surface tension, and cloud point) for aqueous solutions of beta-cyclodextrin-polyethylene glycol have been determined at temperatures from (293.15 to 313.15) K and atmospheric pressure. Results show that the density and surface tension decrease as the temperature increases. The density and cloud point increase with the mass fraction of beta-CD-PEG, whereas the surface tension decreases. Finally, the density and surface tension experimental data have been correlated with different equations. Specifically, the density increases linearly with the increase of beta-CD-PEG mass fraction from 2 % to 10 %; however, the surface tension of beta-CD-PEG decreases quickly in the beta-CD-PEG mass range of 0.001 % to 0.060 %. When the beta-CD-PEG mass fraction is 0.080 % the surface tension of beta-CD-PEG shows the minimum value, 56.1 mN.m(1).
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