Static high pressure study of nitric oxide chemistry: proposed mechanism for nitric oxide detonation. [Shock initiated detonation]

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5711749

Swanson, B I; Agnew, S F; Greiner, N R

The chemistry of nitric oxide under static high pressure conditions has been studied using diamond anvil cells and spectroscopic methods. Pressurized samples warmed rapidly to room temperature undergo facile disproportionation to form N/sub 2/O, N/sub 2/O/sub 3/, N/sub 2/O/sub 4/, and NO/sup +/NO/sub 3//sup -/. Nitric oxide maintained at 80 K is observed to react at ca. 2.5 GPa to form, dominantly, N/sub 2/, O/sub 2/, and NO/sup +/NO/sub 3//sup -/. The complex chemistry of nitric oxide is best explained in terms of two competing primary reaction mechanisms involving the direct formation of N/sub 2/ and O/sub 2/, and disproportionation to form N/sub 2/O and NO/sup +/NO/sub 3//sup -/. The disproportionation reaction, which is favored under higher temperature conditions, releases two-thirds of the total energy content, and is believed to be important in the early chemistry accompanying shock-initiation of nitric oxide. Laboratory scale detonation studies, where the gaseous products are analyzed spectroscopically, show evidence for, dominantly, disproportionation and a small amount of N/sub 2//O/sub 2/ production. This study points to the importance of condensed phase concerted reactions as well as ions and ionic reaction mechanisms in the shock initiated detonation of HE's. 14 refs., 3 figs., 1 tab.

• Research Organization: Los Alamos National Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5711749
• Report Number(s): LA-UR-85-1176; CONF-850706-16; ON: DE85010795
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
BENCH-SCALE EXPERIMENTS
CHALCOGENIDES
CHEMICAL EXPLOSIVES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DETONATIONS
ELEMENTS
ESTERS
EXPERIMENTAL DATA
EXPLOSIVES
INFORMATION
KINETICS
LASER SPECTROSCOPY
LOW TEMPERATURE
NITRATES
NITRIC ACID ESTERS
NITRIC OXIDE
NITROGEN
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PETN
RADICALS
RAMAN SPECTRA
RAMAN SPECTROSCOPY
REACTION KINETICS
REDUCTION
SHOCK WAVES
SPECTRA
SPECTROSCOPY
VERY HIGH PRESSURE