ON THE THEORETICAL AND EXPERIMENTAL MORPHOLOGY OF PARAXYLENE

In this report the theoretical and experimental morphology of p-xylene crystals growing from both the pure melt and a mixture of about 31% o -xylene and 69% of p-xylene will. be discussed. All above mentioned mo rphologies agree quite well with each other. The experimental forms fo und are {100}, {001}, {20(1) over bar} and {110}. The actual roughenin g temperatures can be scaled, using the non-observed stable forms, and regarding them as being rough at the actual growth temperature. Also a comparison of the morphology of naphthalene and p-xylene is made.