Accession Number:

ADA209123

Title:

Structure, Potential Energy Surfaces and Thermodynamic Properties of Hydroxylammonium Nitrate

Descriptive Note:

Final rept. Mar 1985-Jan 1989

Corporate Author:

MISSOURI UNIV-COLUMBIA DEPT OF PHYSICS

Personal Author(s):

Report Date:

1989-04-01

Pagination or Media Count:

8.0

Abstract:

The research performed under this contract was primarily designed to produce basic structural information about hydroxylammonium nitrate HAN, an important ingredient in liquid propellant mixtures under development by the U.S. Army Ballistic Research Laboratory BRL. The most important results which we have achieved are as follows Single pure crystals of HAN were first produced by Ross and subsequently by others at BRL. X-ray and neutron diffraction measurements have been made of HAN andor deuterated HAN. The crystalline structure has been determined for a wide range of temperatures. The X-ray and neutron diffraction data have been jointly analyzed to display he details of the valence electron distribution in HAN. X-ray and neutron liquid scattering experiments have yielded the total structure factor of molten HAN theoretical models of the partial structure factors and from them the total structure of molten HAN have been made using the Percus-Yevick hard-sphere model. As a beginning approach to a perturbation theory of the system, a system of rigid ellipses was studied. Collaborative effort with Dr. Eli Freedman of BRL on intermolecular interactions of nitrogen have continued.

Subject Categories:

  • Organic Chemistry
  • Physical Chemistry
  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE