Results 121 to 130 of about 196 (151)
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Mechanism and Kinetics for Ammonium Dinitramide (ADN) Sublimation: A First-Principles Study
The Journal of Physical Chemistry A, 2012The mechanism for sublimation of NH(4)N(NO(2))(2) (ADN) has been investigated quantum-mechanically with generalized gradient approximation plane-wave density functional theory calculations; the solid surface is represented by a slab model and the periodic boundary conditions are applied.
Zhu, RS (Zhu, R.S.) +2 more
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Ammonium Dinitramide (ADN) Decomposition as Green Propellant
Thermal decomposition of eco-friendly propellants such us ammonium dinitramide (ADN) aims to replace hydrazine in satellite systems. ADN, with formula [NH4]+[N(NO2)2]−, is a promising high-performance rocket propellant. It decomposes cleanly, producing gases such as NH3, H2O, NO, N2O, NO2, HONO, and HNO3, making it an attractive alternative to ammoniumZakaria Harimech +2 more
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The properties of ammonium dinitramide (ADN): Part 1, basic properties and spectroscopic data
Journal of Energetic Materials, 2000Abstract Basic properties and spectroscopic data for the energetic oxidizer ADN (Ammonium dinitramide (NH4N(NO2)2)) are presented. The ADN used for this work was synthesized by a new efficient and environmentally friendly method. The method is based on a direct nitration of salts of sulfamic acid by ordinary mixed acid, followed by neutralization and ...
H. Östmark +4 more
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New Journal of Chemistry, 2020
An overall decomposition mechanism of ammonium dinitramide was systematically investigated via DFT calculations and thermogravimetry-Fourier transform infrared-mass spectrometer (TG-FTIR-MS) techniques.
Kuan Wang +8 more
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An overall decomposition mechanism of ammonium dinitramide was systematically investigated via DFT calculations and thermogravimetry-Fourier transform infrared-mass spectrometer (TG-FTIR-MS) techniques.
Kuan Wang +8 more
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Chemical Engineering & Technology, 2002
Only three references about the reactions of ammonia (NH 3 ) with dinitrogen pentoxide (N 2 O 5 ) have been published in the course of the last 150 years. None of them describes the reactions referring to the products in dependence on the reaction conditions.
C. Frenck, W. Weisweiler
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Only three references about the reactions of ammonia (NH 3 ) with dinitrogen pentoxide (N 2 O 5 ) have been published in the course of the last 150 years. None of them describes the reactions referring to the products in dependence on the reaction conditions.
C. Frenck, W. Weisweiler
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Study of the thermal initiation of ammonium dinitramide (ADN) crystals and prills
Journal of Energetic Materials, 2000Abstract The thermal initiation by electron beam heating (and calibrated hot stage), of single crystals and prills of ADN, has been filmed / recorded in an Environmental Scanning Electron Microscope, from the formation of microscopic “reaction sites” (0.01 μm in diameter) to full crystal consumption.
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Toxicological & Environmental Chemistry, 2000
The biodegradation of one popular nitramine energetics, ammonium dinitramide (ADN) by mixture of denitrifying bacterial species was investigated. ADN was observed to be effectively mineralized in the anaerobic mixed culture. The initial ADN concentration of 250 mg/L was reduced to non‐detectable levels (> 99% removal efficiency) in 5 days of incubation
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The biodegradation of one popular nitramine energetics, ammonium dinitramide (ADN) by mixture of denitrifying bacterial species was investigated. ADN was observed to be effectively mineralized in the anaerobic mixed culture. The initial ADN concentration of 250 mg/L was reduced to non‐detectable levels (> 99% removal efficiency) in 5 days of incubation
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Analysis of anionic impurities in ammonium dinitramide (ADN), Part I: Ion chromatographic analysis
Journal of Energetic Materials, 1996Abstract A method has been developed to analyze ammonium dinitrimide, a new energetic material, as well as other anionic impurities in it. This method employs ion chromatography with UV detection. Analysis of ADN samples could be done in under 20 minutes employing this method. Analysis of pure samples as well as aged samples was accomplished.
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CrystEngComm
TKX-50, as a heterogeneous nucleating agent, significantly reduced the supercooling degree of ADN, raising the melt crystallization temperature from 25.5 °C to 84.5 °C.
Zheng Xing +5 more
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TKX-50, as a heterogeneous nucleating agent, significantly reduced the supercooling degree of ADN, raising the melt crystallization temperature from 25.5 °C to 84.5 °C.
Zheng Xing +5 more
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Analysis of anionic impurities in ammonium dinitramide (ADN), Part II: Capillary ion electrophoresis
Journal of Energetic Materials, 1996Abstract A method has been developed to analyze ammonium dinitrimide (ADN), a new energetic material, as well as other anionic impurities in it. This method employs capillary ion electrophoresis with UV detection. Analysis of ADN samples could be done in under 5.5 minutes employing this method.
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