The directional solidification of the transparent binary alloy succinonitrile-poly(ethylene oxide) was studied in an experiment in which solidification speeds of about 2 mm/sec could be reached without loss of the linear temperature gradient. The low diffusivity of the polymer solute allowed the study of the dynamics of rapid solidification using an optical microscope. For both normal and doubl...

Ultrasonic velocity of Benzene with Tolune and O-Xylone with various concentration at 303 K. The internal pressure and some parameters are calculated from the measured sound velocity, density and viscosity. The results were discussed in terms of ion-solvent and solvent-solvent interactions.