Thermodynamic Properties of Energetic Plasticizers: Experimental Vapor Pressures of Methyl-, Ethyl-, and Butyl-Nitroxyethyl Nitramines

Bikelyt, Greta; Härtel, Martin A. C.; Holler, Marcel; Neuer, Andreas und Klapötke, Thomas M. (2021): Thermodynamic Properties of Energetic Plasticizers: Experimental Vapor Pressures of Methyl-, Ethyl-, and Butyl-Nitroxyethyl Nitramines. In: Journal of Chemical and Engineering Data, Bd. 66, Nr. 4: S. 1709-1716

Abstract

In this work, experimental vapor pressures of the commonly used energetic plasticizers methyl-NENA, ethyl-NENA, and butyl-NENA were measured for the first time with a transpiration method. The p-T fitting equations and the corresponding molar enthalpies of phase transitions at 298.15 K are reported: the molar enthalpies of sublimation and vaporization of methyl-NENA were measured to be 104.5 +/- 0.9 and 82.0 +/- 1.1 kJ.mol(-1), respectively. The consistency of these results was examined by the differential scanning calorimetry experiment, which yielded the molar enthalpy of fusion at 298.15 K to be 23.8 +/- 0.3 kJ.mol(-1). The molar enthalpies of vaporization at 298.15 K for ethyl- and butyl-NENAs were derived to be 79.8 +/- 0.4 and 85.9 +/- 0.5 kJ.mol(-1), respectively. The p-T fitting equations were extrapolated at 298.15 K, and the corresponding results were reported in this work.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Chemie und Pharmazie > Department Chemie
• Themengebiete: 500 Naturwissenschaften und Mathematik > 540 Chemie
• ISSN: 0021-9568
• Sprache: Englisch