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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimir: 2150-766X
ISSN En Línea: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2015011443
pages 321-329

VAPOR PRESSURE AND SUBLIMATION ENTHALPY OF TRIACETONE TRIPEROXIDE BY A GAS CHROMATOGRAPHY STATIC HEADSPACE APPROACH

Jonathan Mbah
Department of Chemical Engineering, Tuskegee University, Tuskegee, Alabama 36088, USA
Debra Knott
Naval Explosive Ordnance Disposal Technology Division, Explosive Detection Equipment Program, Indian Head, Maryland 20640, USA
Scott Steward
Naval Explosive Ordnance Disposal Technology Division, Explosive Detection Equipment Program, Indian Head, Maryland 20640, USA
Danielle Cornett
Naval Explosive Ordnance Disposal Technology Division, Explosive Detection Equipment Program, Indian Head, Maryland 20640, USA

SINOPSIS

Vapor pressure and enthalpy of sublimation of triacetone triperoxide (TATP) that was synthesized using two different catalysts and without recrystallization were investigated by the gas chromatography headspace technique for exploitation in designing its detection remotely or using standoff capabilities. Vapor pressures and enthalpies of sublimation were calculated from the ideal gas and Clausius-Clapeyron equation, respectively. Good linearity of these equations implies that the enthalpy of sublimation is relatively constant over the temperature range studied. The enthalpies of sublimation were found to be 71 ± 4.8 and 65 ± 6.1 kJ mol−1 for TATP catalyzed by HCl and H2SO4, respectively. Also, the vapor pressures differed considerably for the chosen catalysts across the temperature range investigated, suggesting a vapor pressure and sublimation enthalpy dependency on the choice of catalyst used. Both values are in agreement with literature-reported vapor pressure data and enthalpies of sublimation (70−109 kJ mol−1). The study showed that TATP undergoes sublimation at steady rates at approximately 293 K and above.


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