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Novel magnesium salt based on BTATz: Crystal structure, thermal behavior and thermal safety

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Chemical Research in Chinese Universities Aims and scope

Abstract

A new high-energy organic magnesium salt [Mg(H2O)6](BTATz)·2H2O[BTATz=3,6-bis(1H-1,2,3,4-tetrazol-5-yl-amino)-1,2,4,5-tetrazine] was synthesized and characterized by elemental analysis and Fourier transform infrared(FTIR) spectrometry. Its crystal structure was determined by X-ray single crystal diffraction. The crystal belongs to monoclinic system with space group C2/c and a=2.1329(7) nm, b=0.52275(16) nm, c=1.5909(5) nm, β=100.471(6)°, V=1.7443(9) nm3, Z=4, µ=0.361 mm−1, F(000)=900 and D c=1.644 g/cm3. Meanwhile, the thermal behavior of [Mg(H2O)6](BTATz)·2H2O was studied under the non-isothermal conditions by differential scanning calorimetry( DSC) and thermalgravity-differential thermalgravity(TG-DTG) methods. The enthalpy, apparent activation energy and per-exponential factor of the main exothermic decomposition reaction are 898.88 J/g, 139.2 kJ/mol and 1010.48 s−1, respectively. The values of the self-accelerating decomposition temperature(T SADT), the thermal ignition temperature(T TIT) and the critical temperature of thermal explosion(T b) for [Mg(H2O)6](BTATz)·2H2O are 515.13, 532.08 and 565.99 K, respectively.

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Authors and Affiliations

  1. Shaanxi Key Laboratory of Physico-inorganic Chemistry, School of Chemical Engineering, Northwest University, Xi’an, 710069, P. R. China

    Xian-bo Zhang, Ying-hui Ren, Wen Li & Ji-rong Song

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

    Ying-hui Ren, Feng-qi Zhao & Bo-zhou Wang

  3. Conservation Technology Department, The Palace Museum, Beijing, 100009, P. R. China

    Ji-rong Song

Authors
  1. Xian-bo Zhang
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  2. Ying-hui Ren
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  3. Wen Li
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  4. Feng-qi Zhao
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  5. Bo-zhou Wang
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  6. Ji-rong Song
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Corresponding author

Correspondence to Ying-hui Ren.

Additional information

Supported by the National Natural Science Foundation of China(No.21101127), the Natural Science Basic Research Plan in Shaanxi Province of China(No.2011JQ2002), the China Postdoctoral Science Foundation Funded Project(No.20110491676), the National Defense Pre-research Foundation of China(No.9140A28020111BQ3401) and the National Defense Pre-research Foundation of China(No.A312011005).

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Zhang, Xb., Ren, Yh., Li, W. et al. Novel magnesium salt based on BTATz: Crystal structure, thermal behavior and thermal safety. Chem. Res. Chin. Univ. 29, 627–631 (2013). https://doi.org/10.1007/s40242-013-2350-1

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  • DOI: https://doi.org/10.1007/s40242-013-2350-1

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