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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Demirdjian, Benjamin
Centre Interdisciplinaire de Nanoscience de Marseille
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2016Impact of the 0.1% fuel sulfur content limit in SECA on particle and gaseous emissions from marine vesselscitations
- 2015Nanofabrication of optical structures (filters, resonators and sensors)
- 2011Neutron diffraction study of water freezing on aircraft engine combustor soot
- 2009Ship particulate pollutants: Characterization in terms of environmental implicationcitations
- 2009Ship particulate exhaust characterization: microstructure, elemental composition, surface chemistry
- 2007Heterogeneities in the Microstructure and Composition of Aircraft Engine Combustor Soot: Impact on the Water Uptakecitations
- 2005Vapor Pressure and Solid Phases of Methanol below Its Triple Point Temperaturecitations
- 2004Aircraft engine soot as ice nuclei in contrail and cirrus formation
- 2004Aircraft engine soot as contrail nucleicitations
Places of action
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article
Vapor Pressure and Solid Phases of Methanol below Its Triple Point Temperature
Abstract
We present an experimental work devoted to study of the thermodynamical properties of solid methanol. We combine Fourier transform infrared spectroscopy (FTIR) and mass spectrometry (MS) to measure, for the first time, the vapor pressure of various methanol solid phases and determine their Clausius−Clapeyron equations. We perform our experiments between T = 130 K and the triple point temperature Tt = 175.61 K. When methanol is condensed from its vapor below Tt, we observe three different solid phases depending on temperature. A condensation at T = 130 K forms a metastable phase with an enthalpy of sublimation ΔHmetastable-vapor = 42.9 ± 0.5 kJ·mol-1. Upon heating, this phase transforms itself at T≈ 145 K to the α-phase that has an enthalpy of sublimation ΔHα-vapor = 46.9 ± 0.2 kJ·mol-1. Cooling the α-phase does not lead back to the metastable phase, whereas heating this α-phase leads to the β-phase occurrence at Tα-β = 157.36 K. This latter one is stable until Tt and has an enthalpy of sublimation ΔHβ-vapor = 44.2 ± 0.5 kJ·mol-1.