High resolution electron microscopy study of sulphathiazole crystals.

A high resolution electron microscopy study was undertaken on samples of sulphathiazole obtained by recrystallization at 0 degrees C, 30 degrees C and 70 degrees C. Low magnification electron microscopy study of the crystals showed featureless morphology yet the resolved lattice images showed imperfections such as dislocations, lattice irregularities and regions of discontinuity.