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Thermochemical properties of 2,6-diamino-3,5-dinitropyrazine-1-oxide in dimethyl sulfoxide and N-methyl pyrrolidone

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Abstract

The molar enthalpies of dissolution for 2,6-diamino-3,5-dinitropyrazine-1-oxide (LLM-105) in dimethyl sulfoxide (DMSO) and N-methyl-2-pyrrolidone (NMP) were measured using a RD496-2000 Calvet microcalorimeter at 298.15 K under atmospheric pressure. Empirical formulae for the calculation of the molar enthalpies of dissolution (Δdiss H), relative partial molar enthalpies (Δdiss H partial) and relative apparent molar enthalpies (Δdiss H apparent) were obtained from the experimental data of the dissolution processes of LLM-105 in DMSO or NMP. Furthermore, the corresponding kinetic equations describing the two dissolution processes were dα/dt = 10−2.37(1 − α)0.47 for the dissolution of LLM-105 in DMSO, and dα/dt = 10−2.38(1 − α)0.42 for the dissolution of LLM-105 in NMP.

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Acknowledgements

This study was financially supported by the National Natural Science Foundation of China (Nos. 21573173, 21473131 and 21473130).

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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, Chun Lei Xuan, Hong Xu Gao, Li Bai Xiao, Er Gang Yao, Wen Gang Qu & Rong Zu Hu

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  1. Na Li
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Correspondence to Na Li.

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Li, N., Zhao, F.Q., Xuan, C.L. et al. Thermochemical properties of 2,6-diamino-3,5-dinitropyrazine-1-oxide in dimethyl sulfoxide and N-methyl pyrrolidone. J Therm Anal Calorim 127, 2511–2516 (2017). https://doi.org/10.1007/s10973-016-5721-2

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  • DOI: https://doi.org/10.1007/s10973-016-5721-2

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