Application of rigorous nonlinear regression for the analysis of complex isothermal DSC reactivity curves

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6607981

Pickard, J M

Differential scanning calorimetry (DSC) provides a convenient technique for monitoring the global reactivity in real time for decomposition of a variety of secondary explosives. Thermograms for decomposition of explosives are frequently characterized by nonzero initial rates followed by additional transitions involving autocatalysis. An example of this phenomenon is illustrated for decomposition of 2,2',4,4',6,6'-hexanitroazobenzene (HNAB) at temperatures of 590 and 600K. Thermograms exhibit nonzero initial rates followed by autocatalytic transitions exhibiting maxima in the range of 250--500 s. In view of the complexity and frequency of occurrence of these types of thermograms, a computer program was devised to evaluate global rate parameters using nonlinear regression. 7 refs., 5 figs., 1 tab.

• Research Organization: EG and G Mound Applied Technologies, Miamisburg, OH (USA)
• DOE Contract Number: AC04-88DP43495; AC04-76DP00053
• OSTI ID: 6607981
• Report Number(s): MLM-3518(OP); CONF-8810123-3; ON: DE89003144
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
ALGORITHMS
CALORIMETRY
CHEMICAL REACTIONS
DECOMPOSITION
EQUATIONS
EXPLOSIVES
ISOTHERMAL PROCESSES
MATHEMATICAL LOGIC
MATHEMATICS
NITRO COMPOUNDS
NONLINEAR PROBLEMS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
REGRESSION ANALYSIS
STATISTICS