COURTECUISSE, S.; CANSELL, François; FABRE, D.; PETITET, J.-P.

doi:10.1051/jp4:1995428

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COURTECUISSE, S.
Centre d'Etudes de Vaujours-Moronvilliers

CANSELL, François
Laboratoire d'Ingénierie des Matériaux et des Hautes Pressions [LIMHP]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire de Chimie du Solide

FABRE, D.
Laboratoire d'Ingénierie des Matériaux et des Hautes Pressions [LIMHP]

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Ce document a été publié dans

Journal de Physique IV Proceedings. 1995, vol. 5, n° C4, p. 359-363

EDP Sciences

Résumé en anglais

Nitromethane has been studied as a model of the energetic nitro materials. The liquid - transition line has been established by Piermarini [1] and a first solid - solid transition corresponding to the methyl group rotation locking has been evidenced by Cromer [2]. In order to precise the phase diagram of nitromethane, a study has been performed by Raman scattering in the pressure and temperature range of 0 -35 GPa and 20 - 350°C respectively. From these experimental results three new solid phases of nitromethane called III, IV, V and their stability domain have been located. A first chemical transformation line has been detected by the disappearance of nitromethane Raman modes and by the irreversible formation of a transparent solid (CI). A second chemical transformation (CI - CII), at higher temperature, is observed by the sudden darkening of the sample.< Réduire

Mots clés en anglais

Nitromethane

Raman spectroscopy

High pressure

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A Raman Spectroscopic Study of Nitromethane up to 350 °C and 35 GPa

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