| High Nitrogen Explosives. Part 2. Dibenzo-1 ,3a,4,6a- Tetraazapentalenes and Benzo-1 2,3,4-Tetrazine-1,3-Dioxides |
AUG 96 |
61 pages |
| Authors:
Karen L. Altmann; Lawrence H. Merwin; William P. Norris; William S. Wilson; Richard Gilardi; NAVAL AIR WARFARE CENTER WEAPONS DIV CHINA LAKE CA
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 | High nitrogen materials are sought as a potentially dense, powerful but insensitive explosive and propellant ingredients. Elucidation of the structure and chemistry of dibenzo-1 ,3a,4,6a-tetraazapentalenes has continued, with particular attention to a putative C12N12O12 derivative initially prepared at the University of New Orleans. This research contributed substantially to identification of the actual o-quinone hydrate structure, and explanation of the apparently anomalous explosive insensitivity of the material. Synthesis of the novel ... |
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| Synthesis, Characterization and Explosive Properties of 3,5-Dinitro-2,4, 6-Triaminopyridine and Its 1-Oxide |
SEP 95 |
40 pages |
| Authors:
Lawrence H. Merwin; Robin A. Nissan; William S. Wilson; Richard D. Gilardi; NAVAL AIR WARFARE CENTER WEAPONS DIV CHINA LAKE CA
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| 3,5-Dinitro-2,4,6-triaminopyridine was prepared by oxidative amination of 2-chloro-3,5- dinitropyridine or 2,6-diamino-3,5-dinitropyridine, or by treatment of the latter compound with hydroxylamine. 3,5-Dinitro-2,4,6- triaminopyridine-1 -oxide was prepared by oxidation of the parent heterocycle with hydrogen peroxide, or by treatment of 2,6-diamino-3,5-dinitropyridine-1 - oxide with hydroxylamine. This compound features intramolecular and intermolecular hydrogen bonding which results in high density, thermal stability, and insensitivity to impact. jg p.3 |
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| 2,6-Diamino-3,5-Dinitropyridine-1-Oxide-A New Insensitive Explosive |
AUG 95 |
35 pages |
| Authors:
Richard A. Hollins; Robin A. Nissan; William S. Wilson; Richard D. Gilardi; NAVAL AIR WARFARE CENTER WEAPONS DIV CHINA LAKE CA
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| A new insensitive explosive named 2,6,-diamino-3,5-dinitropyridine-1- oxide. modified abstract. jg |
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| High Nitrogen Explosives. Part 1. 2,6-Dinitropyridines and Dibenzo-1,3a, 4,6a-Tetraazapentalenes |
SEP 94 |
85 pages |
| Authors:
Robin A. Nissan; William S. Wilson; Richard D. Gilardi; NAVAL AIR WARFARE CENTER WEAPONS DIV CHINA LAKE CA
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| High nitrogen materials are sought as potential dense powerful but insensitive explosive and propellant ingredients. Progress towards the synthesis of 3,5-diamino-2,4,6-trinitropyridine-1-oxide is described. Also described is recent research to elucidate the chemistry of 2,4,8,10-tetranitrodibenzo-1,3a,4, 6a-tetraazapentalene (TACOT), which will enable the development of new energetic materials based on this ring system. Explosives, Synthesis, Sensitivity, Stability, Performance |
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| 1-(2',4',6'-Trinitrophenyl)imidazoles and -1,2,4-triazoles as Energetic Materials |
MAR 94 |
28 pages |
| Authors:
William S. Wilson; NAVAL AIR WARFARE CENTER WEAPONS DIV CHINA LAKE CA
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| A series of 1-(2',4',6'-trinitrophenyl)imidazoles and -1,2,4- triazoles has been prepared. These compounds have been chemically characterized by infrared spectroscopy, mass spectrometry, and 1H- and 13C-nuclear magnetic resonance (NMR) spectroscopy, and their physical and explosive properties have been examined. The measured densities correspond with those predicted, and increase with increasing the degree of nitration. The impact sensitivities are less than those of 1-(2',4',6'-trinitrophenyl)benzotriazoles, but increase with the degree of nitration (or ... |
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| Explosive Properties of Polynitroaromatics |
APR 90 |
34 pages |
| Authors:
William S. Wilson; Dan E. Bliss; Stephen L. Christian; David J. Knight; NAVAL WEAPONS CENTER CHINA LAKE CA
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| A large number of polynitroaromatic compounds have been prepared in these laboratories over the last decade or so during programs to develop new energetic materials. |
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| The Synthesis and Properties of Picryldinitrobenzimidazoles and the 'Trigger Linkage' in Picryldinitrobenzotriazoles |
JUL 89 |
37 pages |
| Authors:
Charlotte I. Lowe-Ma; Robin A. Nissan; William S. Wilson; NAVAL WEAPONS CENTER CHINA LAKE CA
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| The synthesis of certain picryldinitrobenzimidazoles and their structural elucidation are described. |
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| Tetrazolo(1,5-A)pyridines and Furazano(4,5-B)pyridine-1-oxides as Energetic Materials |
APR 89 |
28 pages |
| Authors:
Charlotte K. Lowe-Ma; Robin A. Nissan; William S. Wilson; NAVAL WEAPONS CENTER CHINA LAKE CA
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| The synthesis of a series of tetrazolo, (1,5-a)pyridines by nucleophilic azide attack on 2-chloropyridines is described. |
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| Anomalous Shock Sensitivity/Density Relationship for RDX-Polyethylene Wax and Related Formulations from MRL Small Scale Gap Test (SSGT) Measurements |
JAN 88 |
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| Authors:
Robert J. Spear; Victor Nanut; Ian J. Dagley; William S. Wilson; MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)
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 | Shock sensitivity as measured by the MRL SSGT shows a consistent trend to lower values as %TMD decreases for pressed RDX formulations and some pure explosives such as tetryl. Decrease in particle size, disruption of surface coating, critical diameter and run distance effects were all considered but found not to be the major cause. Comparison of MRL SSGT data for a series of production booster explosives with corresponding NOL SSGT ... |
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| Diazophenols - Their Structure and Explosive Properties |
AUG 1987 |
33 pages |
| Authors:
Charlotte K. Lowe-Ma; Robin A. Nissan; William S. Wilson; NAVAL WEAPONS CENTER CHINA LAKE CA
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| The bonding structure of diazophenols has been examined by X-ray crystal structure determination and by 13C nuclear magnetic resonance (NMR) spectroscopy. |
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| Benzotriazoles as Energetic Materials |
JUL 86 |
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| Authors:
Adrian M. Pitt; William S. Wilson; MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)
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| Treatment of 2-aminodiphenylamines with nitric acid or nitrous acid has yielded nitro-substituted 1-phenylbenzotriazoles. These materials have been examined as potential energetic materials, with particular reference to their densities, thermal properties, sensitiveness characteristics and explosive properties. |
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| Synthesis of the Isomeric Aminotetranitrotoluenes. |
11 MAY 1982 |
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| Authors:
Ronald L. Atkins; William P. Norris; Arnold T. Nielsen; Richard A. Hollis; William S. Wilson; DEPARTMENT OF THE NAVY WASHINGTON DC
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| Novel aminotetranitrotoluenes, aryl compounds with four nitro groups introduced into the aromatic nucleus, are prepared by nitration of an appropriate aminodinitrotoluene precursor in mixed acid solution, followed by treatment with anisole. The inventive compounds are more energetic than TNT while imparting other desirable properties to explosives made therewith, such as high density, good thermal and chemical stability, stability towards impact and shock initiation, and improved detonation properties including detonation velocity ... |
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| Recent Approaches to the Synthesis of High Explosive and Energetic Materials: A Review |
APR 1982 |
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| Authors:
Robert J. Spear; William S. Wilson; MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)
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| The synthesis of energetic materials over the past 10-15 years has been revised. The areas in which most activity has occurred embrace six different classes of compounds: polynitroaliphatics, dinitrofluoromethyl compounds, difluoramines, azido compounds; polynitroaromatics, and heterocyclic compounds. Each class is treated within a single section covering the synthesis of the basic building-block materials, the strategies for transforming these into the final products and the scope and limitations of the reactions ... |
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| The Use of Recrystallised RDX in Cast RDX/TNT Compositions |
MAR 1981 |
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| Authors:
William S. Wilson; MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)
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| The particle size of RDX recrystallised from cyclohexanone (Grade A Class 1) is much larger than that of milled and boiled RDX (Grade B Class 1), and as a consequence, the recrystallised RDX is subject to a larger sedimentation during casting of RDX/TNT/Beeswax compositions. However, this sedimentation occurs largely from the top of the casting, which is normally discarded, and the density and RDX distributions of pressure castings produced in ... |
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| Recrystallised RDX for RDX/Polyethylene Wax Compositions. |
MAY 1980 |
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| Authors:
William S. Wilson; MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)
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| The impact and shock sensitivities of RDX/polyethylene wax compositions prepared from RDX Grade A Class 1 (recrystallised from cyclohexanone) have been measured using the Rotter Impact Test and Gap Test respectively, and the results have been compared with those obtained for compositions prepared from RDX Grade B Class 1 (milled and boiled). The increased impact sensitivity and decreased shock sensitivity of the compositions based on the recrystallised RDX are attributed ... |
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| The Effect of Crystal Orientation on Growth on Polycrystalline TNT, |
MAY 1980 |
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| Authors:
William S. Wilson; MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)
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| Dimensional instability of polycrystalline TNT depends markedly on crystal orientation within the specimen. Growth or irreversible expansion on thermal cycling is large in a particular direction if there is a 'texture' of crystals with high and low coefficients of thermal expansion in that direction which interact to produce large intercrystalline stresses. Growth is smaller when the crystals are so arranged that there are no such interactions and the intercrystalline stresses ... |
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| RDX/Polyethylene Wax Compositions as Pressed Explosive, |
SEP 1978 |
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| Authors:
William S. Wilson; MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)
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| The preparation and sensitivity of explosive formulations prepared from RDX and an emulsifiable polyethylene wax are described. The compaction of these explosive compositions, the sensitivity of the resultant charges to shock and their velocity of detonation are also discussed. (Author) |
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