نتایج جستجو برای: ammonium dinitramide
تعداد نتایج: 25294 فیلتر نتایج به سال:
in this thesis protic and aprotic ammonium-based ionic liquids were synthesized and their surface tensions were measured in the range of 298-373k. the protics are alkyl ammonium-based ils with the carboxylate (formate, acetate, propionate) anion and aprotics are quaternary ammonium-based ils with bis(trifluoromethylsulfonyl)imide anion. capillary rise method was used for surface tension measure...
Owing to the prime importance of ammonium dinitramide (ADN) as an oxidizer in solid propellants, its synthesis has received a great amount of interest. There have been several new and innovative synthesis routes developed by researcher’s worldwide. Liquid-fuel rockets consist of a fuel and oxygen (or other oxidizer) in liquid state. These fractals are already being combined together or combined...
The pyrolysis of guanylurea dinitramide (GUDN), often referred to as FOX-12, was assessed using differential scanning calorimetry together with in situ microscopy and Raman spectroscopy, order determine the mechanism for this compound. experimental results showed that thermal behavior GUDN depended on heating rate, by presence a condensed phase prior sharp exotherm at highest rate. During GUDN,...
Ammonium dinitramide (ADN) with a positive oxygen balance (25.8%) is a metal free- energetic compound, which is used in military explosives and smokeless or green solid propellants. Combustion products of solid propellants based on ADN are clean and smokeless and they do not release hydrogen chloride gas, which can be an excellent alternative compound as an oxidizer in the solid propellant form...
Abstract Salts being liquid below 100 °C are defined as ionic liquids. Due to their unique properties, they attracting increasing interest and also investigated in the field of energetic materials. Combining nitrogen‐rich cations oxygen‐rich anions, it is possible obtain liquids (EILs). Potential applications plasticizers, high explosives, gun rocket propellants. However, only few works have be...
We have used a non-local density functional procedure (DF/GGA/DZVPP) to compute the structure of the dinitramide anion N(NO& and the energetics of some possible decomposition steps. The structures are in good agreement with crystallographic results, and show the NO2 groups to be rotated out of the N-N-N plane, with a considerable difference between the two N-N-O angles of each NO* group. Of thr...
1-Amino-3-nitroguanidine (ANQ, 2) was synthesized via hydrazinolysis of nitroguanidine (1). An appropriate Lewis structure of ANQ is drawn based on VB calculations. Due to its basicity, it can be protonated by strong mineral acids or acidic heterocycles. In order to synthesize new energetic materials the nitrate (3) and perchlorate (4) salts of 1-amino-3-nitroguanidine were synthesized by proto...
in solvo-hydrothermal method, xrd pattern was indicated presence of intermediate of ammonium octatmolybdate and ammonium tetramolybdate, which were changed to stble phase of ?-moo3 annealing. sem images were indicated nanoparticle with semispheical morphology and tem image was demonstrated nanoparticles with a diameter size of 25nm. also in impregnate method. the xrd pattern was shown high crys...
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