CRCU

Chemical Research in Chinese Universities ›› 2012, Vol. 28 ›› Issue (4): 743-746.

• Articles • Previous Articles     Next Articles

Dissolution Properties of 2-(Dinitromethylene)-5-methyl-1,3-diazacyclopentane in Dimethyl Sulfoxide and N-Methyl Pyrrolidone

XIAO Li-bai1, XING Xiao-ling1, ZHAO Feng-qi1, XU Kang-zheng2, YAO Er-gang1, TAN Yi1, HAO Hai-xia 1   

  1. 1. Science and Technology on Combustion and Explosion Laboratory, Xi’an Modern Chemistry Research Institute, Xi’an 710065, P. R. China;
    2. School of Chemical Engineering, Northwest University, Xi’an 710065, P. R. China
  • Received:2011-08-03 Revised:2011-09-16 Online:2012-07-25 Published:2012-07-25
  • Supported by:

    Supported by the Science and Technology Foundation of the Science and Technology on Combustion and Explosion Labo- ratory of Xi’an Modern Chemistry Research Institute, China(No.9140C35030112OC3501).

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Abstract: The molar enthalpies of dissolution for 2-(dinitromethylene)-5-methyl-1,3-diazacyclopentane(DNMDZ) in dimethyl sulfoxide(DMSO) and N-methyl pyrrolidone(NMP) were measured using an RD496-2000 Calvet microcalorimeter at 298.15 K under atmospheric pressure. Empirical formulae for the calculation of the molar enthalpies of dissolution(ΔdissH) were obtained from the experimental data of the dissolution processes of DNMDZ in DMSO or NMP. The relationships between the rate constant(k) and the molality(b) and between the reaction order(n) and the molality(b) were determined. The corresponding kinetic equations describing the two dissolution processes were dα/dt=10-2.16(1-α)1.01 for the dissolution of DNMDZ in DMSO, and dα/dt=10-2.02(1-α)0.85 for the dissolution of DNMDZ in NMP, respectively.

Key words: 2-(Dinitromethylene)-5-methyl-1,3-diazacyclopentane, Dissolution, Kinetics, Dimethylsulfoxide, N-Methyl pyrrolidone