Compatibility study of dihydroxylammonium 3,3′-dinitroamino-4,4′-azoxyfurazanate with some energetic materials applied in solid propellant

In this paper, chemical compatibility between dihydroxylammonium 3,3′-dinitroamino-4,4′-azoxyfurazanate (HOF) and some energetic components applied in solid propellant is explored via differential scanning calorimetry (DSC) and vacuum stability test (VST). DSC results show that HOF was compatible with NC, BAMO–GAP, GAP, HMX, CL-20, DNTF, NTO-Pb, Al powder, and Mg powder according to a modified evaluated standard of DSC. However, absorbentia (NC + NG) and RDX were both sensitive with HOF, while binary mixture of HOF and DINA was incompatible. After heating at 90 °C for 40 h, net gas evolution of binary mixtures, such as HOF/NC, HOF/absorbentia, HOF/BAMO–GAP, HOF/DINA, HOF/RDX, was 0.04, 0.84, −0.50, 6.62, and 7.23 mL, respectively, when compared to single HOF sample. VST result further identifies that HOF was simultaneously compatible with NC and BAMO–GAP, but did moderately interact with absorbentia. It is found that DINA and RDX are both incompatible with HOF, which means they are not allowed to store with HOF for a long time.