Accession Number:

ADA214411

Title:

Characterization of the Thermal Degradation of Selected Energetic Materials and Mixtures by Rapid-Scan Fourier Transform Infrared (RSFTIR) Spectroscopy

Descriptive Note:

Final rept. Jun 1988-Jun 1989

Corporate Author:

DELAWARE UNIV NEWARK DEPT OF CHEMISTRY

Personal Author(s):

Report Date:

1989-09-01

Pagination or Media Count:

23.0

Abstract:

There has been considerable interest in ethylenediammonium dinitrate EDD as a component of mixtures with other nitrate salts and various organic molecules for use in melt castable explosives. Most of this work is described in the international patent literature. EDD mixtures with ammonium nitrate AN are more thermally stable than EDD alone, and they have better performance than AN alone. The eutectic mixture has a lower melting point than either component making it suitable for melt casting. However, EDDAN mixtures suffer from volume changes with temperature because of the phase transitions of AN. The addition of potassium nitrate KN stabilizes the AN and counters the expansion of AN at 32 C caused by one of the solid-solid phase transitions. This Interim Report describes the fast thermal decomposition processes of AN, EDD and two heterogeneous mixtures EDDAN 5050 and EDDANKN 46468, called EAK. The techniques employed are rapid scan Fourier Transform Infrared FTIR spectroscopyTemperature Profiling as the main technique and differential scanning calorimetry DSC to support the temperature profiling data obtained at the high heating rates.

Subject Categories:

  • Inorganic Chemistry
  • Physical Chemistry
  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE