Heat of fusion and excess thermodynamic functions of organic eutectics

Rastogi, R. P. ; Singh, N. B. ; Rastogi, Prashant ; Singh, Narsingh Bahadur (1977) Heat of fusion and excess thermodynamic functions of organic eutectics Journal of Crystal Growth, 40 (2). pp. 234-238. ISSN 0022-0248

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/002202...

Related URL: http://dx.doi.org/10.1016/0022-0248(77)90010-0

Abstract

Phase diagrams and heats of fusion of some organic eutectics have been studied. An empirical equation is proposed for the determination of heats of fusion of eutectics. Excess thermodynamic functions such as hE, SE and gE have been calculated. The heats of fusion of various organic eutectics have been compared with values obtained from the mixture law. The results have been explained on the basis of the fact that clusters are formed during melting. The cluster formation tendency is greater in systems in which hydroxyl groups are present.

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