The melting of the mononitrophenols has been studied over a pressure range of 4,000 kg/cm2by separate application of a piston displacement and a new dynamic method. By the dynamic method, the procedure was to observe the sudden change of temperature difference as the nitrophenol underwent melting with change of pressure. Comparison of results obtained by the two methods indicate close agreement for the pressure‐melting temperature data of ortho‐ and metanitrophenol which have not been studied previously over the present pressure range. Application of the dynamic method is compared briefly with that of the piston displacement method in respect to melting and polymorphic transitions of solids at high pressure.
展开▼
