ChemInform Abstract: Dinitramide and Its Salts. Part 4. Molecular Structure of Dinitramide.

Shlyapochnikov, V. A.; Cherskaya, N. O.; Luk’yanov, O. A.; Gorelik, V. P.; Тартаковский, В. А.

doi:10.1002/chin.199516013

Cited by 3 publications

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“…HPLC/ultraviolet (UV) analysis demonstrated that, in aqueous solution, the FOX-12 salt dissociates instantly to its two components, guanylurea and dinitramide. The HPLC chromatogram at 210 nm in Figure clearly shows two peaks: one appearing at a retention time of 5.8 min identified as guanylurea by comparison to a reference standard material and another appearing at 9.1 min identified as dinitramide and confirmed by liquid chromatography–ultraviolet/mass spectrometry (LC–UV/MS) showing characteristic UV absorptions at 219 and 285 nm ,, and a deprotonated molecular mass ion [M – H] at 106 Da.…”

Section: Resultsmentioning

confidence: 99%

Joint Photomicrobial Process for the Degradation of the Insensitive Munition N-Guanylurea-dinitramide (FOX-12)

Perreault

Halasz

Thiboutot

et al. 2013

Environ. Sci. Technol.

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/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1021/es4006652Environmental Science & Technology, 47, 10, pp. 5193-5198, 2013-04-17 Joint photomicrobial process for the degradation of the insensitive munition N-Guanylurea-dinitramide (FOX-12) Perreault, Nancy N.; Halasz, Annamaria; Thiboutot, Sonia; Ampleman, Guy; Hawari, Jalal ABSTRACT: N-Guanylurea-dinitramide (FOX-12) is a very insensitive energetic material intended to be used in the composition of next-generation insensitive munitions. To help predict the environmental behavior and fate of FOX-12, we conducted a study to determine its photodegradability and biodegradability. When dissolved in water, FOX-12, a guanylurea-dinitramide salt, also named GUDN, dissociated instantly to produce the dinitramide moiety and guanylurea, as demonstrated by high-performance liquid chromatography (HPLC) analysis.When an aqueous solution of FOX-12 was subjected to photolysis using a solarsimulated photoreactor, we found a rapid removal of the dinitramide with concurrent formation of N 2 O, NO 2 − ,a n dN O 3 − . The second component, guanylurea, was photostable. However, when FOX-12 was incubated aerobically with the soil isolate Variovorax strain VC1 and protected from light, the dinitramide component of FOX-12 was recalcitrant but guanylurea degraded effectively to ammonia, guanidine, and presumably CO 2 . When FOX-12 was incubated with strain VC1 in the presence of light, both components of FOX-12 degraded, giving similar products to those described above. We concluded that the new insensitive explosive FOX-12 can be effectively degraded by a joint photomicrobial process and, therefore, should not cause persistent contamination of surface waters.

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Section: Resultsmentioning

confidence: 99%

Joint Photomicrobial Process for the Degradation of the Insensitive Munition N-Guanylurea-dinitramide (FOX-12)

Perreault

Halasz

Thiboutot

et al. 2013

Environ. Sci. Technol.

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“…Solving the system of Eqs. (1), (2) and (3), one can obtain expression for the concentrations of the anions, molecules and protonated form of HDN. At the great difference in the constants of the decomposition of these forms there are three regions of the acidity of sulfuric acid solutions, where the rate of the decomposition is determined by the rate of the decomposition of only one equilibrium form: N(NO 2 ) À 2 , HN(NO 2 ) 2 or H 2 N(NO 2 ) 2 .…”

Section: Resultsmentioning

confidence: 99%

Kinetics and Mechanism of Thermal Decomposition of Dinitramide

Kazakov

Rubtsov

Манелис

2000

Propellants, Explosives, Pyrotechnics

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Kinetics of the thermal decomposition of dinitramide (HDN) in aqueous solutions and of NH 4 N(NO 2 ) 2 (ADN) and KN(NO 2 ) 2 (KDN) in sulfuric acid, nitric acid and anhydrous acetic acid solutions was studied. The species N(NO 2 ) À 2 , HN(NO 2 ) 2 and H 2 N(NO 2 ) 2 were established to take part in the decomposition over a wide range of the medium acidity. Kinetic regularities of their thermal decomposition were determined. The role of the decomposition of dinitramide at the initial and self-acceleration stages of the decomposition of ADN was determined. The most likely mechanism of the decomposition of dinitramide, N(NO 2 ) À 2 and H 2 N(NO 2 ) 2 was proposed.

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“…The ammonium dinitramide (ADN), as a new generation of the high energy oxidizer, is considered to be a preferable alternative to the traditional ammonium perchlorate (AP) oxidizer because of the advantage of positive oxygen balance and low characteristic combustion signal [1][2][3][4][5][6][7][8][9]. Therefore, ADN has attracted a great deal of interests in the energetic materials community.…”

Section: Introductionmentioning

confidence: 99%

Reactive Molecular Dynamics Study on the Effect of H₂O on the Thermal Decomposition of Ammonium Dinitramide

Zeng

Yang

et al. 2020

Propellants Explo Pyrotec

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Ammonium dinitramide (ADN) is a halogen-free green oxidizer, which is widely used in energetic materials because of its positive oxygen balance and low characteristic signal. However, ADN is easy to absorb moisture, which affects its storage and safety performances. It is of great significance to study the effect of water on its thermal decomposition mechanism. In this paper, the thermal decomposition processes of the ADN with water contents of 0 %, 1 %, 2 %, 5 %, and 10 % are simulated by large-scale reactive molecular dynamics simulations. The reaction pathway and the evolution of the main products are analyzed in detail. The results show that the ADN is not stable and decompose easily, namely ADN!NH 3 (NH 4) + HN 3 O 4 (N 3 O 4). The H 2 O has a significant effect on the thermal decomposition of the ADN. The water contents of 2 % and 5 % can better promote the decomposition of the ADN and the degree of decomposition is also more thorough.

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ChemInform Abstract: Dinitramide and Its Salts. Part 4. Molecular Structure of Dinitramide.

Abstract: Dinitramide and Its Salts. Part 4. Molecular Structure of Dinitramide. --(SHLYAPOCHNIKOV, V. A.; CHERSKAYA, N. O.; LUK'YANOV, O. A.; GORELIK, V. P.; TARTAKOVSKII, V. A.; Izv.

Cited by 3 publications

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Joint Photomicrobial Process for the Degradation of the Insensitive Munition N-Guanylurea-dinitramide (FOX-12)

Joint Photomicrobial Process for the Degradation of the Insensitive Munition N-Guanylurea-dinitramide (FOX-12)

Kinetics and Mechanism of Thermal Decomposition of Dinitramide

Reactive Molecular Dynamics Study on the Effect of H₂O on the Thermal Decomposition of Ammonium Dinitramide

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ChemInform Abstract: Dinitramide and Its Salts. Part 4. Molecular Structure of Dinitramide.

Abstract: Dinitramide and Its Salts. Part 4. Molecular Structure of Dinitramide. --(SHLYAPOCHNIKOV, V. A.; CHERSKAYA, N. O.; LUK'YANOV, O. A.; GORELIK, V. P.; TARTAKOVSKII, V. A.; Izv.

Cited by 3 publications

References 0 publications

Joint Photomicrobial Process for the Degradation of the Insensitive Munition N-Guanylurea-dinitramide (FOX-12)

Joint Photomicrobial Process for the Degradation of the Insensitive Munition N-Guanylurea-dinitramide (FOX-12)

Kinetics and Mechanism of Thermal Decomposition of Dinitramide

Reactive Molecular Dynamics Study on the Effect of H2O on the Thermal Decomposition of Ammonium Dinitramide

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Reactive Molecular Dynamics Study on the Effect of H₂O on the Thermal Decomposition of Ammonium Dinitramide