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Dissolution properties of N-guanylurea dinitramide (GUDN) in dimethyl sulfoxide and N-methyl pyrrolidone

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Abstract

The enthalpies of dissolution of N-guanylurea dinitramide (GUDN) in dimethyl sulfoxide (DMSO) and N-methyl-2-pyrrolidone (NMP) were measured using an RD496-2000 Calvet microcalorimeter at 298.15 K under atmospheric pressure, respectively. Empirical formulae for the calculation of the enthalpy of dissolution (Δdiss H), relative partial molar enthalpy (Δdiss H partial), and relative apparent molar enthalpy (Δdiss H apparent) were obtained from the experimental data of the dissolution processes of GUDN in DMSO and NMP. Furthermore, the corresponding kinetic equations describing the two dissolution processes were dα/dt = 10−3.39(1 − α)0.70 for the dissolution of GUDN in DMSO, and dα/dt = 10−4.06(1 − α)1.11 for the dissolution of GUDN in NMP.

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Acknowledgements

This study was financially supported by the National Natural Science Foundation of China (Grant No. 21173163) and Technology Foundation of National Defense Key Laboratory of Propellant and Explosive Combustion in China (Grant No.9140C350307110C3506).

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Authors and Affiliations

  1. Science and Technology on Combustion and Explosion Laboratory, Xi’an Modern Chemistry Research Institute, Xi’an, 710065, China

    Na Li, Feng Qi Zhao, Yang Luo, Hong Xu Gao, Li Bai Xiao, Rong Zu Hu & Rong Hui Ju

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  1. Na Li
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  2. Feng Qi Zhao
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Correspondence to Na Li.

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Li, N., Zhao, F.Q., Luo, Y. et al. Dissolution properties of N-guanylurea dinitramide (GUDN) in dimethyl sulfoxide and N-methyl pyrrolidone. J Therm Anal Calorim 115, 869–873 (2014). https://doi.org/10.1007/s10973-013-3303-0

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