Results 21 to 30 of about 10,804 (151)

ENERGETIC SALTS: DEGRADATION AND TRANSFORMATION

open access: yesPropellants, Explosives, Pyrotechnics, 2020
The first part of this work mainly focuses on distinguishing and characterizing two white solids namely urea nitrate (UN) and nitrourea (NU) with similar melting point (~160 o C). Urea Nitrate is an inorganic salt. It has found use as an improvised explosive and was used in the first world trade center bombings.
Xiao Heming   +3 more
openaire   +3 more sources

Synthesis and characterization of pyrazole- and imidazole- derived energetic compounds featuring ortho azido/nitro groups

open access: yesFirePhysChem, 2022
Two novel nitrogen-rich heterocyclic energetic compounds, 5-amino-3-azido-4-nitro-1H-pyrazole (3) and 5,5′-diazido-4,4′-dinitro-1H,1′H-2,2′-biimidazole(6), featuring ortho azido/nitro groups were designed and synthesized by reactions of diazonium salts ...
Yuan Lai   +5 more
doaj   +1 more source

2,4,5‐Trinitroimidazole‐Based Energetic Salts [PDF]

open access: yesChemistry – A European Journal, 2007
Abstract2,4,5‐Trinitroimidazolate (TNI) salts with “high‐nitrogen” cations tend to be highly hydrogen bonded and have heats of formation ranging up to 616 kJ mol−1. Density, oxygen balance, and thermostability are enhanced by the presence of TNI. Based on theoretical calculations, all of the new salts are potential propellants.
Haixiang, Gao   +6 more
openaire   +2 more sources

Energetic performance of trinitromethyl nitrotriazole (TNMNT) and its energetic salts

open access: yesChemical Communications, 2023
Trinitromethyl nitrotriazole (TNMNT) and its hydrazinium and potassium salts exhibit several unique energetic properties, which suggest their potential as solid propellants and oxidizers.
Sohan Lal   +2 more
openaire   +2 more sources

Energetic salt of trinitrophloroglucinol and melamine [PDF]

open access: yesAIP Conference Proceedings, 2017
We hope to harness the field of energetic co-crystals for development of insensitive, high-performing explosives. As demonstrated by other groups, co-crystals of energetic materials are diverse in their resultant properties versus the native materials.
Patrick R. Bowden   +4 more
openaire   +1 more source

Structures and properties of energetic cations in energetic salts

open access: yesRSC Advances, 2017
Energetic cations play important roles in energetic performance, which may attribute to the diverse backbones and substituted groups of energetic cations. This review emphasizes the roles of backbones and substituted groups in the energetic performance of energetic salts.
W. Liu, W. L. Liu, S. P. Pang
openaire   +2 more sources

Nitrification Progress of Nitrogen-Rich Heterocyclic Energetic Compounds: A Review

open access: yesMolecules, 2022
As a momentous energetic group, a nitro group widely exists in high-energy-density materials (HEDMs), such as trinitrotoluene (TNT), 1,3,5-triamino-2,4,6-trinitrobenzene (TATB), cyclo-1,3,5-trimethylene-2,4,6-trinitramine (RDX), etc.
Yiming Luo   +3 more
doaj   +1 more source

The integration of dinitropyrazole and 1,3,4-oxadiazole: A novel hybrid heterocyclic skeleton for balancing energy and stability

open access: yesDefence Technology, 2023
In this study, a new energetic hybrid skeleton was constructed through the integration of nitropyrazole and 1,3,4-oxadiazole skeletons in a molecule. Furthermore, the energetic precursor (2), the azo-bridged compound (3), the neutral nitramine (4) and ...
Xiao-xiao Zheng   +4 more
doaj   +1 more source

Comparative thermal research on tetraazapentalene-derived heat-resistant energetic structures

open access: yesScientific Reports, 2020
Organic inner salt structures are ideal backbones for heat-resistant energetic materials and systematic studies towards the thermal properties of energetic organic inner salt structures are crucial to their applications.
Jing Zhou   +5 more
doaj   +1 more source

Nitropyrazole based tricyclic nitrogen-rich cation salts: A new class of promising insensitive energetic materials

open access: yesFirePhysChem, 2021
Nitrogen-rich compound 5,5′-(4-nitro-1H-pyrazole-3,5-diyl)-bis-(4H-1,2,4-triazole-3,4-diamine) (4) and its energetic salts (5–8) were synthesized. Compounds 4–7 posesse satisfactory mechanical sensitivity (IS > 40 J, FS > 360 N).
Dongxu Chen   +4 more
doaj   +1 more source

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