Detonation properties of 1,1-diamino-2,2-dinitroethene (DADNE)

Military University of Technology, Warsaw, Poland. <>
Journal of Hazardous Materials (Impact Factor: 4.53). 10/2008; 157(2-3):605-12. DOI: 10.1016/j.jhazmat.2008.01.026
Source: PubMed


1,1-Diamino-2,2-dinitroethene (DADNE, FOX-7) is an explosive of current interest. In our work, an advanced study of detonation characteristics of this explosive was performed. DADNE was prepared and recrystallized on a laboratory scale. Some sensitivity and detonation properties of DADNE were determined. The detonation performance was established by measurements of the detonation wave velocity, detonation pressure and calorimetric heat of explosion as well as the accelerating ability. The JWL (Jones-Wilkins-Lee) isentrope and the constant-gamma isentrope for the detonation products of DADNE were also found.

Download full-text


Available from: Waldemar Trzciński, Jan 09, 2015
  • Source
    • "50 °C) than that of pure HMX. FOX-7 decomposes at temperatures higher than 200 °C, and it is a two-step process, as in pure FOX-7 [18]. The decomposition exotherm of DNAN/NTO mixture peaks at 250 °C. "
    [Show abstract] [Hide abstract]
    ABSTRACT: Some sensitivity and performance characteristics for pure 2,4-dinitroanisole (DNAN) and 2,4,6-trinitrotoluene (TNT), as well as for meltpour composites containing 40% of DNAN or TNT, 20% of RDX, and 40% of NTO were determined (under the same conditions) and compared.
    Full-text · Article · Jan 2014 · Central European Journal of Energetic Materials
  • Source
    • "1,1-Diamino-2,2-dinitroethene (DADNE, FOX-7) was obtained for the first time in 1998 [1] [2]. The detonation parameters of DADNE match those of RDX, whilst its sensitivity to various stimuli shows that it can be considered as a relatively safe explosive [3] [4]. Despite the passage of years since the first reports on the synthesis of DADNE, it is still intensively studied in many research centers. "
    [Show abstract] [Hide abstract]
    ABSTRACT: In this work the conditions and kinetics of nitration of 2-methylpyrimidine-4,6-dione (MPD), which leads to the formation of 1,1-diamino-2,2-dinitroethene (DADNE), are presented. An analysis of literature data enabled us to propose a model and a mathematical formulation of the synthesis of DADNE. The model was verified on the basis of literature data and our own experimental data. The influence of the addition time of nitric acid into a model reactor on temperature and composition of the reaction mixture was investigated. The proposed synthesis model could be useful in a study of the MPD nitration process on a large, laboratory scale.
    Full-text · Article · Jan 2012 · Central European Journal of Energetic Materials
  • Source
    • "In the field of energetic materials, acetamidine is a starting material for the synthesis of 2-methoxy-2-methylimidazolidine-4,5-dione [6] and 2-methylpyrimidine-4,6-diol [7-9]. Both are further transformed to 2,2-dinitroethene-1,1-diamine (FOX-7, DADNE), which is an energetic material with low sensitivity to external stimuli [6,10]. The free base acetamidine is hygroscopic. "
    [Show abstract] [Hide abstract]
    ABSTRACT: Acetamidines are starting materials for synthesizing many chemical substances, such as imidazoles, pyrimidines and triazines, which are further used for biochemically active compounds as well as energetic materials. The aim of this study was to synthesise and characterise a range of acetamidinium salts in order to overcome the inconvenience connected with acetamidinium chloride, which is the only commercially available acetamidinium salt. Acetamidinium salts were synthesised and characterised by elemental analysis, mass spectrometry, NMR and - in the case of energetic salts - DTA. The structures of previously unknown acetamidinium salts were established by X-ray diffraction analysis. Hygroscopicities in 90% humidity of eight acetamidinium salts were evaluated. The different values of hygroscopicity are corroborated by the structures determined by X-ray analysis. The acetamidinium salts with 2D layered structures (acetamidinium nitrate, formate, oxalate and dinitromethanide) show a lack of hygroscopicity, and the compounds with 3D type of structure (acetamidinium chloride, acetate, sulphate and perchlorate) and possessing rather large cavities are quite hygroscopic.
    Full-text · Article · Dec 2011 · Chemistry Central Journal
Show more