The Arrhenius kinetics of decomposition of the nitramine explosive 1,4-dinitrofurazano[3,4,b]piperazine (DNFP) and the less energetic parent amine furazano[3,4,b]piperazine (FP) were determined by isothermal TGA and from the rate of change of selected vibrational modes in the IR spectra. For DNFP, E(a) = 136 kJ and log A = 15.5 min-1. The IR spectra show that N-NO2 homoloysis is the dominant initial reaction. For FP, E(a) = 202 kJ and log A = 22.1 min-1. The value of E(a) is the same as the N-O bond strength of the furazan ring.