Accès gratuit
Numéro
J. Phys. IV France
Volume 11, Numéro PR10, Décembre 2001
Journées d'Étude des Équilibres entre Phases
Page(s) Pr10-27 - Pr10-33
DOI https://doi.org/10.1051/jp4:20011003
Journées d'Étude des Équilibres entre Phases

J. Phys. IV France 11 (2001) Pr10-27-Pr10-33

DOI: 10.1051/jp4:20011003

Phase diagram of γ-butyrolactone-dimethyl-carbonate mixtures

A. Chagnes1, C. Mialkowski1, B. Carre1, D. Lemordant1, V. Agafonov1 and P. Willmann2

1  Laboratoire de Physicochimie des Interfaces et des Milieux Réactionnels, EA 2048, Université de Tours, Faculté des Sciences, Parc de Grandmont, 37200 Tours, France
2  CNES, 18 avenue E. Belin, 31055 Toulouse cedex, France


Abstract
Using differential scanning calorimetry (DSC) and X-ray diffraction (XRD) at low temperatures we have determined a phase relation between γ-butyrolactone and dimethyl carbonate. Two polymorphs of γ-butyrolactone with a monotropic transformation and two polymorphs of dimethyl carbonate with an enantiotropic transformation induced by BL were observed. The diagram is characterised by an eutectic point for xDMC=0.12 and T=-57.5°C.



© EDP Sciences 2001