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Thermodynamic Modeling of Pyrotechnic Smoke Compositions
Some of the most effective visible obscurants for military applications are toxic or incendiary or present serious logistical complications. Sustainable alternatives are needed to mitigate the risks
Development and Performance of Boron Carbide‐Based Smoke Compositions
Pyrotechnic smoke compositions for visual obscuration containing boron carbide, potassium nitrate, potassium chloride, and various lubricants are described. Only the waxy lubricants stearic acid and
Synthesis and properties of carboxy-substituted half-sandwich ruthenium complexes with chelating bisphosphine ligands (η5-C5H4CO2H)Ru(η2-L)X (X = I, H)
Abstract Several Ru(II) complexes (η 5 -C 5 H 4 CO 2 H)Ru(η 2 -L)I have been prepared by the hydrolysis of the ester linkage in (η 5 -C 5 H 4 CO 2 t -Bu)Ru(η 2 -L)Cl with trimethylsilyl iodide. The
Transition-Metal Hydride Radical Cations.
This comprehensive review focuses on experimental studies of TMHRCs reported through the year 2014, with an emphasis on isolated and observed species.
Periodates as Potential Replacements for Perchlorates in Pyrotechnic Compositions
The periodate salts NaIO4 and KIO4 are critically evaluated as potential replacements for KClO4 in pyrotechnic compositions. Key differences between the physical and chemical properties of the
Versatile Boron Carbide-Based Energetic Time Delay Compositions
Pyrotechnic time delay compositions composed of boron carbide, sodium periodate, and polytetrafluoroethylene have been developed for use in the U.S. Army hand-held signal. The new compositions were
Performance and Aging of Mn/MnO2 as an Environmentally Friendly Energetic Time Delay Composition
The Mn/MnO2 reactive system was investigated as a suitable replacement for the traditional W/BaCrO4/KClO4/diatomaceous earth delay composition. The delay performance, ignition sensitivity, and aging
Using a two-step hydride transfer to achieve 1,4-reduction in the catalytic hydrogenation of an acyl pyridinium cation.
In the stoichiometric reductions, the ratio of 1,4 to 1,2 product increases as the Ru hydrides become better one-electron reductants, suggesting that the1,4 product arises from a two-step (e(-)/H(*)) hydride transfer.
Synthesis, Electrochemistry, and Reactivity of Half-Sandwich Ruthenium Complexes Bearing Metallocene-Based Bisphosphines
The bimetallic complexes CpRu(P−P)X [Cp = η5-C5H5; X = Cl, H; P−P = dppf (1,1′-bis(diphenylphosphino)ferrocene), dppr (1,1′-bis(diphenylphosphino)ruthenocene), dppo
Versatile Boron Carbide-Based Visual Obscurant Compositions for Smoke Munitions
New pyrotechnic smoke compositions, containing only environmentally benign materials, have been demonstrated to produce thick white smoke clouds upon combustion. These compositions use powdered boron