THE SOLID SOLUTION PHASE DIAGRAM OF THE MIXTURE OF ORTHO- AND PARACHLOROTOLUENES

The complete miscible solid solution with a minimum freezing point (-50.75℃; 26.88% para-) of the ortho- and para-chlorotoluene has been proved in this paper by many methods as the thermal analysis method, the X-ray matter phase analysis, the fractional crystallized separation method and the solidified separation method of solid solution, and by the Fel'dman's experiential productivity formula compared with the theoretical productivity formula which was obtained from the solidified separation according to the solid solution phase diagram. Therefore, the international official conclusion of simple eutectic type phase diagram of ortho- and para-chlorotoluene mixture does not agree with the experimental facts.The powder diffraction files of ortho- and para-chlorotoluenes are given in this paper.

THE SOLID SOLUTION PHASE DIAGRAM OF THE MIXTURE OF ORTHO- AND PARACHLOROTOLUENES