Abstract
The phase relationships in binary systems forming a crystalline addition compound are obtained by means of classical thermodynamic arguments for the case in which both components are volatile. This approach can be applied to inclusion compounds and to other low-stability addition compounds existing only in the solid phase. The results are consistent with those already known for clathrates containing a volatile guest and a non-volatile host, and for symmetric systems, such as racemic compounds. The temperature range in which the adduct undergoes a congruent sublimation depends on the ratio of the vapor pressures of the two components. A relation has been found to exist between the properties of the pure components, the melting behavior and the enthalpy of formation of the adduct.
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Farina, M. Phase diagrams of crystalline adducts containing two volatile components. J Incl Phenom Macrocycl Chem 14, 101–111 (1992). https://doi.org/10.1007/BF01029657
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DOI: https://doi.org/10.1007/BF01029657