Jesse J. Sabatini

Chlorine-Free Red-Burning Pyrotechnics

The development of a red, chlorine-free pyrotechnic illuminant of high luminosity and spectral purity was investigated. Red-light emission based solely on transient SrOH(g) has been achieved by using either 5-amino-1H-tetrazole or hexamine to deoxidize the combustion flame of a Mg/Sr(NO3 )2 /Epon-binder composition and reduce the amount of both condensed and gaseous SrO, which emits undesirable orange-red light. The new formulations were found to possess high thermal onset temperatures. Avoiding chlorine in these formulations eliminates the risk of the formation of PCBs, PCDDs, and PCDFs. This finding, hence, will have a great impact on both military pyrotechnics and commercial firework sectors.

A Strontium- and Chlorine-Free Pyrotechnic Illuminant of High Color Purity

The development of a red-light-emitting pyrotechnic illuminant has garnered interest from the pyrotechnics community owing to potential regulations by the United States Environmental Protection Agency (U.S. EPA) regarding the use of strontium and chlorinated organic materials. To address these environmental regulatory concerns, the development of lithium-based red-light-emitting pyrotechnic compositions of high purity and color quality is described. These formulations do not contain strontium or chlorinated organic materials. Rather, the disclosed formulations are based on a non-hygroscopic dilithium nitrogen-rich salt that serves as both oxidizer and red colorant. These formulations are likely to draw interest from the civilian fireworks and military pyrotechnics communities for further development as they both have a vested interest in the development of environmentally conscious formulations.

Crystal structure of 3,3′-biisoxazole-5,5′-bis(methyl­ene) dinitrate (BIDN)

The crystal structure and packing of the energetic compound 3,3′-bis-isoxazole-5,5′-bis-methylene dinitrate is reported. Major FTIR, Raman, UV absorption peaks, as well as experimental and calculated density are reported.

Crystal structures of 5,5′-bis(­hydroxy­methyl)-3,3′-biisoxazole and 4,4′,5,5′-tetrakis­(hydroxy­methyl)-3,3′-biisoxazole

Crystal structure, packing, and FTIR characterization of 5,5′-dihydroxymethyl-3,3′-biisoxazole and 4,4′,5,5′-tetrahydroxymethyl-3,3′-biisoxazole are reported.