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Thermal hazard assessment of TNT and DNAN under adiabatic condition by using accelerating rate calorimeter (ARC)

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Abstract

The thermal decomposition behaviors of 2,4,6-Trinitrotoluene (TNT) and 1-methoxy-2,4-dinitro-benzene (DNAN) were studied by using a NETSCH company accelerating rate calorimetry. Hazard indicators such as onset temperature, adiabatic temperature rise, initial self-heat temperature, maximum self-heating rate, and time-to-maximum temperature rise rate have been determined directly. The kinetic parameters, such as the activation energy (E a) and the pre-exponential factor (A) were studied from the measured self-heating rate data by assuming order reaction.

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Abbreviations

Φ :

Thermal inertia factor

T 0 :

Initial self-heat temperature (°C)

T f :

Final decomposition temperature (°C)

ΔT ad :

Adiabatic temperature rise (°C)

m 0 :

Initial temperature rise rate (°C min−1)

m m :

Maximum temperature rise rate (°C min−1)

T m :

Temperature of maximum temperature rise rate (°C)

θ m :

Time of maximum temperature rise rate (min)

E a :

The apparent activation energy (kJ mol−1)

R :

The gas constant

A :

Pre-exponential factor

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Acknowledgements

Funding was provided by the Technology Innovation Program of Bei**g Institute of Technology of China (Grant No. 2017CX10003).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Bei**g Institute of Technology, Bei**g, 100081, China

    Chunyuan Zhang, Shaohua **, Baochao **g, Fang Bao & Qinghai Shu

  2. School of Chemistry and Material Science, South-Central University for Nationalities, Wuhan, China

    Jiawen Ji

  3. Gansu Yinguang Chemical Industry Group. Co. Ltd., Baiyin, 730900, Gansu province, China

    Guangyuan Zhang

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  1. Chunyuan Zhang
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  2. Shaohua **
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  3. Jiawen Ji
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  4. Baochao **g
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  5. Fang Bao
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  6. Guangyuan Zhang
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  7. Qinghai Shu
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Correspondence to Qinghai Shu.

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Zhang, C., **, S., Ji, J. et al. Thermal hazard assessment of TNT and DNAN under adiabatic condition by using accelerating rate calorimeter (ARC). J Therm Anal Calorim 131, 89–93 (2018). https://doi.org/10.1007/s10973-017-6665-x

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  • DOI: https://doi.org/10.1007/s10973-017-6665-x

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