EXPERIMENTAL STUDIES ON GROWTH KINETICS OF SALOL CRYSTALS FROM THE MELT

In situ observation method has been carried out to investigate the growth kinetics of salol from the melt. The temperature-dependence of growth rate of salol crystals in a supercooling range of 0 to 3°C for (102) and (012) faces are studied. The lateral (two dimensional nucleation) –to-continuous growth transition has been obtained. The free energy of step ε, the radius of the critical nucleus r*, and the excess free energy of a critical nucleus ΔG* are measured for (102) and (012) faces.