NITROUREAS .1. SYNTHESIS, SCALE-UP AND CHARACTERIZATION OF K-6

The synthesis and characterization of 2-oxo-1,3,5-trinitro-1,3,5-triaz acyclohexane (K-6), a cyclic dinitrourea, is described. The laboratory synthesis was scaled-up to provide 1.6 kilograms of crystalline K-6 w hich was used for performance testing. K-6 was formulated with 5% Vito n A and pressed to 96.5% theoretical maximum density (TMD). Performanc e measurements in the form of front surface velocity measurements (tan talum plate push) and 1-inch cylinder expansion experiments indicate K -6 will out-perform HMX by 4% at early volume expansions. Thermal resp onse and shock sensitivity experiments on K-6 are also described.