| Research and Development of Hazardous/Toxic Waste Analytical Screening Procedures. Available Field Methods for Rapid Screening of Hazardous Waste Materials at Waste Sites (Class A Poisons) |
JAN 1982 |
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| Authors:
Roger E. Snyder; Bruce E. Schulte; Laura Mangoba; Edward T. McHale; ATLANTIC RESEARCH CORP ALEXANDRIA VA COMBUSTION AND PHYSICAL SCIENCE DEPT
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 | A literature survey was undertaken to identify Class A poisons and to identify candidate field detection methods for each poison of interest to this study. The literature obtained on each candidate method was judged by the following criteria method complexity, field adaptability, reagent shelf life, interference levels, detection sensitivity, reagent cost and reagent toxicity. Candidate procedures were found for arsine, bromoacetone, cyanogen chloride, ethyl and methyldichloro-arsine, cyanogen, germane, hydrocuanic acid, ... |
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| Chemistry of Combustion of Fuel-Water Mixtures |
SEP 1981 |
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| Authors:
Edward G. Skolnik; Edward T. McHale; Harley L. Heaton; ATLANTIC RESEARCH CORP ALEXANDRIA VA COMBUSTION AND PHYSICAL SCIENCE DEPT
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| The continuation of an experimental flame study concerning the nonphysical processes that lead to soot suppression when water is added to fuel, begun in a previous program is reported. The study included a mapping of temperature, chemical species and soot profiles of laminar diffusion flames with and without water added. Fuels studied included ethylene and a benzene/hydrogen mixture. Flames with nonreactive gases added (argon, nitrogen), were also studied for comparison ... |
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| Chemical Initiation of FAE Clouds |
NOV 1979 |
37 pages |
| Authors:
G. Von Elbe; E. T. McHale; ATLANTIC RESEARCH CORP ALEXANDRIA VA COMBUSTION AND PHYSICAL SCIENCE DEPT
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 | Laboratory experiments with liquid fuel and ClF3 (CTF) or BrF3 (BTF) have suggested that an effective FAE blast may be obtained by very rapid fuel/ agent dispersion and agent-induced combustion. In the current work, initial small-scale field tests using small pellets of high-explosive for fuel and agent dispersion have yielded significant FAE blasts when performed in open air, no blast when performed in an atmosphere of nitrogen, and a very ... |
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| Studies of the Ignition and Combustion of Boron Particles for Air - Augmented Rocket Applications |
OCT 1974 |
106 pages |
| Authors:
Merrill K. King; Andrej Macek; ATLANTIC RESEARCH CORP ALEXANDRIA VA COMBUSTION AND PHYSICAL SCIENCE DEPT
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| The objective of the present work has been to characterize the nature of the primary exhaust from fuel-rich motors containing boron, and to study its ignition and combustion characteristics, especially as compared to the known information for pure boron. Section II of the present report describes (a) the rocket-motor firing program in which the condensed exhaust (CE) from two different composite ammonium perchlorate propellants was collected, and (b) the results ... |
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| A STUDY OF THE EXPLOSION LIMITS OF SIMPLE DIFLUORAMINO COMPOUNDS |
JUN 1969 |
57 pages |
| Authors:
Guenther Von Elbe; J. B. Levy; G. White; ATLANTIC RESEARCH CORP ALEXANDRIA VA COMBUSTION AND PHYSICAL SCIENCE DEPT
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| Vapors of bis-difluoroamino propanes C3H6(NF2)2 (DP) and bisdifluoroamino butanes C4H7(NF2)2 (DB) were exploded either by raising the temperature or by adding fluorine. For the thermally induced explosion the experiments yielded explosion limits as functions of pressure p, temperature T and vessel diameter d. For the fluorine-induced explosion the experiments yielded explosion limits in terms of critical fluorine concentrations (F2)crit. The data show prima facie that the reaction is of the ... |
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| RESEARCH ON THE DEFLAGRATION OF HIGH-ENERGY SOLID OXIDIZERS. |
15 DEC 1967 |
71 pages |
| Authors:
Guenther von Elbe; Edward T. McHale; Raymond Friedman; Joseph B. Levy; ATLANTIC RESEARCH CORP ALEXANDRIA VA COMBUSTION AND PHYSICAL SCIENCE DEPT
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| This report covers research performed on the self-deflagration of hydroxylammonium perchlorate, the general objective of which was to gain some understanding of the combustion process. The experimental work included measurements of the pressure dependence of the deflagration rate, flame temperature, quenching diameters, and inflammability limits. A summary of the significant results of all the solid oxidizers studied is included, and an analysis of the combustion of these monopropellant-type oxidizers is ... |
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| RESEARCH ON THE DEFLAGRATION OF HIGH-ENERGY SOLID OXIDIZERS. |
15 SEP 1967 |
9 pages |
| Authors:
G. Von Elbe; E. T. McHale; ATLANTIC RESEARCH CORP ALEXANDRIA VA COMBUSTION AND PHYSICAL SCIENCE DEPT
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| A new phase of the program, the study of solid propellant and oxidizer extinguishment by rapid depressurization, began during this quarter. In this report we describe the apparatus used for this work and the results obtained on the first propellant tested. The apparatus is an optical strand burner modified to allow rapid depressurization by venting. At pressures of 2000 psi, pressure decay rates of 5 x 10 to the 5th ... |
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| RESEARCH ON THE DEFLAGARATION OF HIGH-ENERGY SOLID OXIDIZERS. |
30 JUN 1967 |
9 pages |
| Authors:
G. Von Elbe; E. T. McHale; ATLANTIC RESEARCH CORP ALEXANDRIA VA COMBUSTION AND PHYSICAL SCIENCE DEPT
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| During this quarter, the study of the deflagration of hydroxylammonium perchlorate (HAP) was completed. The results obtained since the previous report are given, together with further analysis of the HAP deflagration process. Some data on ammonium perchlorate (AP) have also been obtained and these are presented. The AP deflagration process is also analyzed and a concept of cellular flame structure is advanced. (Author) |
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| A STUDY OF THE EXPLOSION LIMITS OF SIMPLE DIFLUORAMINO COMPOUNDS. |
MAY 1967 |
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| Authors:
Guenther Von Elbe; ATLANTIC RESEARCH CORP ALEXANDRIA VA COMBUSTION AND PHYSICAL SCIENCE DEPT
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| Explosion limits for 1,3-bisdifluoramino propane were established. The chain branching step involves a unimolecular decomposition of the chain carrier NF2-CH2-CH-CH2-NF2. In the absence of a low temperature limit chain-branching occurs in the gas phase and chain destruction at the surface only. The limit data indicate a constant pd2 product instead of the usual p2d2. (Author) |
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| RESEARCH ON THE DEFLAGRATION OF HIGH-ENERGY SOLID OXIDIZERS. |
11 AUG 1965 |
10 pages |
| Authors:
ATLANTIC RESEARCH CORP ALEXANDRIA VA COMBUSTION AND PHYSICAL SCIENCE DEPT
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| Measurements of the flame temperature of deflagrating hydrazine diperchlorate using fine Chromel-Alumel thermocouples have been completed at 28 atm. A value of 1385 + or -35 K (corrected for radiation heat loss of the thermocouple) was obtained. Experiments at 55 atm have tentatively put the flame temperature at above 1500 K at this pressure. Both temperatures are below the theoretical value of 1600 K and indicate that thermodynamic equilibrium is ... |
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