Abstract
Heats of sublimation and fusion for l and dl-menthol, d and dl-carvoxime and d and dl-dimethyl tartrate were measured. Values of 22.9, 18.8, 21.7, 24.3, 18.5 and 26.9 kcal mole and 18.2, 15.7, 24.3, 30.9, 23.3 and 36.2 cal g were obtained for heats of sublimation and fusion respectively. Heats of sublimation are believed known to ±5% while heats of fusion are believed qualitatively correct. Generally good agreement was observed with literature values when available. Higher heats of fusion and sublimation are observed for the enantiomer or racemate with the higher fusion temperature. Correlation of these physical properties with the phase diagram for fusion and solubility suggest that differences in the temperature dependence of vapor pressure and solubility might be useful diagnostic tests for discontinuities in molecular packing and phase behavior in the solid state. Prediction of the temperature where racemic mixture to conglomerate transitions occur would be extremely useful for resolving racemates.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
