Compatibility Study of Dihydroxylammonium 5,5′-Bistetrazole-1,1′-diolate (TKX-50) with Some Energetic Materials and Inert Materials

Dihydroxylammonium 5,5'-bistetrazole-1,1'-diolate (TKX-50) emerged as a novel energetic material with low sensitivity and excellent calculated detonation performance. The compatibility of TKX-50 with nitrocellulose (NC), an NC/NG (nitroglycerine) mixture (mass rate: 1.25:1), 2,4-dinitroanisole (DNAN), 2,4,6-trinitrotoluene (TNT), cyclotrimethylenetrinitramine (RDX), ammonium perchlorate (AP), hexanitroethane (HNE), cyclotetramethylenetetranitramine (HMX), hexanitrohexazaisowurtzitane (CL-20), glycidyl azide polymer (GAP), hydroxyl-terminated polybutadiene (HTPB), aluminum powder (Al), boron powder, and centralite was studied by differential scanning calorimetry (DSC). The results show that TKX-50/HNE possesses good compatibility, TKX-50 and HMX have moderate compatibility, and the compatibility of TKX-50 with TNT, CL-20, centralite, NC, AP, Al, and GAP is poor; in addition, TKX-50/RDX, TKX-50/NC+NG, TKX-50/B, and TKX-50/HTPB have poor compatibility.