Accession Number : ADA231502

Title :   The Effects of Composition Variation and Nitric Acid on the Stability and Reactivity of the Han-Based Liquid Propellants.

Descriptive Note : Final rept. Jun 87-May 90,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Klein, Nathan ; Leveritt, Charles S. ; Baer, Paul G.

Report Date : JAN 1991

Pagination or Media Count : 37

Abstract : The hydroxylammonium nitrate (HAN) based propellants, LGP1845 and LGP1845, are normally formulated from HAN, triethanolammonium nitrate (TEAN), and water. HAN:TEAN molar ratio is 7, the value required for N2 CO2 stoichiometry, and the amount of water present controls energy content and a number of the physical properties of the propellant. The effect of composition variation on performance was studied in order to gain insight into manufacturing specification limits. Nitric acid is a plausible impurity in these mixtures and its presence affects both the thermal stability and ballistic performance of the propellants. In addition, nitric acid, in small amounts, lowers the density of the mixtures thereby adversely affecting volumetric impetus.

Descriptors :   *LIQUID PROPELLANTS, NITRIC ACID, DENSITY, STABILITY, SPECIFICATIONS, PERFORMANCE(ENGINEERING), INORGANIC CHEMISTRY, PRODUCTION ENGINEERING.

Subject Categories : Ammunition and Explosives
      Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE