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This paper describes the explosive sensitivity and performance properties of two novel high-nitrogen materials, 3,6-bis-nitroguanyl-1,2,4,5-tetrazine (1, (NQ 2 Tz)) and its corresponding bistriaminoguanidinium salt (2, (TAG) 2 (NQ) 2 Tz)). These materials exhibit very low pressure dependence in burning rate. Flash pyrolysis/FTIR spectroscopy was performed, and insight into this interesting burning behavior was obtained. Our studies indicate that 1 and 2 exhibit highly promising energetic materials properties.

The Mushroom test is desi ed to characterize the corner turning performance of a new generation of merit are examined using pure TATB (both Livermore's Ultrafine and a Los Alamos researxblend) and PBX9504 as examples. less insensitive booster exp ff" osives. The test is described in detail, and three corner turning fi res-of-'This is opposite to an initiation test, which delivers a relatively large, weak, pressure stimulus to the sample.

A screening test was developed at Los Alamos National Laboratory [1] that can be used to decide if a newly synthesized/ formulated explosive might warrant further development. The test consists of firing a rate-stick composed of 12.7 mm diameter by 12.7 mm high pellets of different densities ordered from lowest to highest, initiated by a detonator at the low-density end of the stick. This poly-rho test yields detonation velocities over a range of densities using only the small amount of the explosive typically generated by the synthetic organic chemist at an early stage of the scale-up process. The amount of material required is far less than that required for the typical rate-stick series. This paper presents results on poly-rho tests that were conducted on three explosives commonly used at Los Alamos National Laboratory, namely PBX 9501, PBX 9502 and PETN. The results are compared with empirical detonation-theory predictions and existing explosive experimental data, with good agreement in all cases.

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