Thermal and acoustic experiments on polymorphic ethanol

Bisher Kabtoul (1) , Rafael J. Jimenez-Rioboo (2) , Miguel Angel Ramos (1)

1 FMC - Departamento de Fisica de la Materia Condensada [Madrid]
2 ICMM - Instituto de Ciencia de Materiales de Madrid

We report calorimetric and acoustic experiments conducted on pure ethanol, in the temperature range around 80 – 180 K, where different solid-solid and solid-liquid transitions are observed. Using a versatile calorimetric experimental system, we have accurately measured the specific heat of the different phases, and also studied the phase transitions between them, the latter supported by complementary Brillouin-scattering experiments. The influence of several factors in the kinetics of crystallization vs vitrification is also shown and briefly discussed.

Mots clés: Physical Sciences

Bisher Kabtoul, Rafael J. Jimenez-Rioboo, Miguel Angel Ramos. Thermal and acoustic experiments on polymorphic ethanol. Philosophical Magazine, 2008, 88 (33-35), pp.4197-4203. ⟨10.1080/14786430802484881⟩. ⟨hal-00513979⟩