Thermal decomposition of energetic materials: Temporal behaviors of the rates of formation of the gaseous pyrolysis products from condensed-phase decomposition of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine

Journal Article · Thu Aug 23 00:00:00 EDT 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100380a034· OSTI ID:6373088

Behrens, R Jr ^[1]

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1. Sandia National Laboratories, Livermore, CA (USA)

The temporal behaviors of the rates of formation of the gaseous products from the pyrolysis of HMX (octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine) are determined by simultaneous thermogravimetric modulated beam mass spectrometry (STMBMS). The gaseous products formed from the pyrolysis of HMX, and its deuterium- and {sup 15}NO{sub 2}-labeled analogues, between 210 and 235{degree}C are H{sub 2}O, HCN, CO, CH{sub 2}O, NO, N{sub 2}O, CH{sub 3}NHCHO, (CH{sub 3}){sub 2}NNO, 1-nitroso-3,5,7-trinitro-1,3,5,7-tetrazocine (ONTNTA), and their isotopic analogues. In addition, a nonvolatile residue (NVR) is formed. The NVR is a polyamide that decomposes between 250 and 780{degree}C producing NH{sub 3}, HCN, HNCO, H{sub 2}NCHO, CH{sub 3}NHCHO, and products that include long-chain hydrocarbons. The temporal behaviors of the rates of gas formation of the pyrolysis products along with the macroscopic and microscopic structure of the NVR indicate that complex physical processes and chemical mechanisms within the condensed phase of HMX control the decomposition.

• OSTI ID: 6373088
• Journal Information: Journal of Physical Chemistry; (USA), Vol. 94:17; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
CHEMICAL EXPLOSIVES
DECOMPOSITION
EXPERIMENTAL DATA
MASS SPECTROSCOPY
NITROGEN COMPOUNDS
PYROLYSIS PRODUCTS
THERMAL ANALYSIS
THERMAL GRAVIMETRIC ANALYSIS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
DATA
EXPLOSIVES
GRAVIMETRIC ANALYSIS
INFORMATION
NUMERICAL DATA
QUANTITATIVE CHEMICAL ANALYSIS
SPECTROSCOPY
450100* - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives