Date of Award
Master of Science (MS)
Professor J. A. Morrison
The methylchloromethane (MCM) compounds ((CH₃) in C Cl(n-4) with 0
2,2-dichloropropane has three solid phases and only one is cubic. The cubic phase is unusually stable; this may be attributable to a stabilizing influence of the surface (glass) of the sample cell. The optical birefringence results give a different view of the transitions than that deduced from existing meagre thermal data.
The information gleaned from the optical birefringence measurements had subsequently led to an extensive investigation of the thermal properties of 1,1,1-trichloroethane with a high precision adiabatic calorimeter. It has confirmed the general description of the interrelation between the different phases given here as well as the strategic role played by impurities.
Sakon, Margaret, "Polymorphism in Solid 1,1,1-trichloroethane and Solid 2,2-dichloropropane" (1976). Open Access Dissertations and Theses. Paper 356.