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Title: Composition of vapors evolved from military TNT as influenced by temperature, solid composition, age and source
Authors: Leggett, Daniel C.
Jenkins, Thomas F.
Murrmann, R. P.
Keywords: Explosives, Military
Mines (Military explosives)
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Series/Report no.: Special Report;77-16
Abstract: A number of domestic and foreign military TNT samples were analyzed by a gas chromatographic headspace technique. The method allowed the determination of the vapor pressure of TNT and the partial pressures of several associated impurities over a 2° to 32°C temperature range. A major volatile impurity in all U.S. military TNT samples was 2,4-dinitrotoluene, which had a partial pressure 1 to 2 orders of magnitude higher than the vapor pressure of TNT. The experimental data followed a Clausius-Clapeyron temperature dependence for the vapor pressure of TNT, and the partial pressure of DNT was related to its concentration in the solid by a Henry's constant. Age and source of the TNT were found to have little or no influence on these relationships. The reasons for finding a relatively high DNT partial pressure are discussed, as is its implication for TNT detection by trace gas methods.
Appears in Collections:Special Report

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