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Imidazolium dipicrylamine is a new nitroaromatic compound.The solubility of imidazolium dipicrylamine is 0.027g.The oxygen balance of imidazolium dipicrylamine is-71.0%,which has better oxygen balance than 2,4,6-trinitroluene(-74.0%).The density of imidazolium dipicrylamine is 1.72 g·cm-3,which is much higher than the density of 2,4,6-trinitroluene(1.65 g·cm-3).The dissolution behaviors of imidazolium dipicrylamine in N-methl pyrrolidone(NMP)were studied by a RD496-2000 Calvet microcalorimeter at different temperatures.The values of heat effect at different temperatures and the relationships between the heat effect and the amount of substance were determined.The measured molar enthalpies(ΔdissH)for imidazolium dipicrylamine in NMP are-27.14kJ·mol-1,-22.31kJ·mol-1,-20.59kJ·mol-1,and-20.38kJ·mol-1,and the differential enthalpies(ΔdifH)are-27.86kJ·mol-1,-23.25kJ·mol-1,-21.31kJ·mol-1,and-21.16kJ·mol-1 at 298.15K,303.15K,308.15K and 313.15K,respectively.The kinetic equations of dissolution processes of imidazolium dipicrylamine in NMP at different temperatures are dα/dt =10-2.64(1-α)0.79(T=298.15K),dα/dt =10-2.43(1-α)0.82(T=303.15K),dα/dt =10-2.40(1-α)1.00(T=308.15K),dα/dt =10-2.37(1-α)0.78(T=313.15K),respectively.The values of activation energy E and pre-exponential factor A are obtained as 10.24 kJ·mol-1 and 10-0.68 s-1.