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Wyszukujesz frazę "nitroglycerin" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Primary Nitramines Related to Nitroglycerine: 1-Nitramino-2,3-dinitroxypropane and 1,2,3-Trinitraminopropane
Autorzy:
Altenburg, T.
Klapötke, T. M.
Penger, A.
Powiązania:
https://bibliotekanauki.pl/articles/358814.pdf
Data publikacji:
2009
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
explosives
primary nitramine
nitroglycerin
structure elucidation
thermostability
Opis:
The title compounds 1-nitramino-2,3-dinitroxypropane (NG-N1) and 1,2,3-trinitraminopropane (NG-N3) were formed by multi-step reaction from the corresponding amine. Both compounds were fully characterized by means of multinuclear NMR (1 H, 13 C, 14 N) N), vibrational spectroscopy, elemental analysis and mass spectrometry. For prediction of the energetic properties ΔHc values are determined by oxygen bomb calorimetry and validated by quantum theoretical methods. Both compounds are superior in their performance data to nitroglycerine (NG) and pentaerythritol tetranitrate (PETN). In comparison to nitroglycerine the sensitivities towards mechanical stimuli is greatly reduced. X-ray diffraction elucidated the molecular structure of both compounds. NG-N1 crystallizes in the monoclinic space group P21 with a density of 1.799 g/cm(3), NG-N3 in the orthorhombic space group Pnma with a density of 1.783 g/cm(3). The thermal behavior and long term stabilities were checked using differential scanning calorimetry and thermogravimetric measurements. NG-N1, shows for primary nitramines, exceptional stability in the molten phase making this compound suitable for melt-cast application (Tmp: 65 C, Tdec: 170 C).
Źródło:
Central European Journal of Energetic Materials; 2009, 6, 3-4; 255-275
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
E-Smoking Liquids as Precursors for Liquid Nitroesters
Autorzy:
Fettaka, H.
Lefebvre, M. H.
Powiązania:
https://bibliotekanauki.pl/articles/358051.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
E-smoking liquid
nitroesters
nitroglycerin
1,2-propylene glycol dinitrate
brisance test
activation energy
Opis:
Currently, E-smoking cigarettes are widely used and occur within all classes of society. This work investigated the use of E-smoking liquids for the synthesis of Nitroglycerin (NG) and 1,2-Propylene Glycol Dinitrate (PGDN), both considered as nitroester liquid high explosives. Two kinds of E-smoking liquids (10 mL) were investigated: nicotine free and with nicotine (10 mg/mL). Quantitative analysis of the glycerin and propylene glycol (PG) present in the E-smoking liquids was carried out by gas chromatography-mass spectrometry (GCMS), with calculation of the accuracy and precision parameters. The percentage of glycerin was (10-13 wt.%) and percentage of propylene glycol was (40-70 wt.%) The synthesis of pure NG and pure PGDN were performed with laboratory grade glycerin and propylene glycol and compared to the samples obtained from the E-smoking liquid. Differential Scanning Calorimetry (DSC) was used for the determination of the activation energy and the heat of decomposition for each synthesized explosive, using the Ozawa and Kissinger models. The brisance index was assessed by the witness plate test and compared with some conventional explosives (TNT and C4). Finally, the influence of nicotine (less than 2 wt.%) on the synthetic process and the detonic properties of the explosive mixture was studied.
Źródło:
Central European Journal of Energetic Materials; 2016, 13, 1; 199-216
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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