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Dissolution properties of ammonium dipicrylamide in dimethyl sulfoxide and N-methyl pyrrolidone
Ist Teil von
Thermochimica acta, 2012-10, Vol.546, p.138-142
Ort / Verlag
Oxford: Elsevier B.V
Erscheinungsjahr
2012
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
► Ammonium dipicrylamide (ADPA) is a new energetic salt. ► The empirical formula of enthalpy for ADPA dissolved in DMSO and NMP are obtained. ► The kinetic equations for ADPA dissolved in DMSO and NMP are obtained. ► The effect of the molality of ADPA on the rate is found.
The enthalpies of dissolution for ammonium dipicrylamide (ADPA) in dimethyl sulfoxide (DMSO) and N-methyl pyrrolidone (NMP) were measured using a RD496-2000 Calvet microcalorimeter at 298.15K under atmospheric pressure. Empirical formulae for the calculation of the enthalpies of dissolution (ΔdissH) were obtained from the experimental data of the dissolution processes of ADPA in DMSO and NMP. The linear relationships between the rate (k) and the molality (b) were found. The corresponding kinetic equations describing the two dissolution processes were dα/dt=10−2.38(1−α)0.86 for the dissolution of ADPA in DMSO, and dα/dt=10−2.49(1−α)0.83 for the dissolution of ADPA in NMP, respectively.