Thermal Decomposition and Safety Assessment of N-Nitrodihydroxyethyl Dinitrate by DSC and ARC

Abstract—N-Nitrodihydroxyethyl dinitrate (DINA), an explosive as well as high-energy plasticizer, was widely used in double-base propellant production. In this paper, the thermal explosion hazard and decomposition progress of DINA under dynamic and adiabatic conditions were investigated using differential scanning calorimeter (DSC) and accelerating rate calorimeter (ARC) respectively to acquire thermodynamic parameters (e.g. Tonset, Tp and ΔHd) for self-heat reactions. The specific heat capacity was calculated based on a linear ramp method using DSC. Futhermore, we carried out these tests, which can provide more useful information for determining the decomposition kinetic parameters (Ea and A) and thermal hazard parameters (ΔG≠, ΔH≠, ΔS≠, Tb and TD24) under the non-isothermal and adibatic conditions, respectively. The SADT predictions for the 5, 20 and 50 kg packages of DINA and some simulation for spatial distribution of T and α have been performed using the finite element analysis method of AKTS software, which can help us to optimize the conditions of storage and transportation for chemical, also minimize industrial disasters.

Index Terms—N-Nitrodihydroxyethyl dinitrate, DSC, ARC, Thermal decomposition kinetic, Hazards assessment.

Jun Zhang, Shuxin Chen, Liping Chen, and Wanghua Chen are with the Department of Safety Engineering, School of Chemical Engineering, Nanjing University of Science & Technology, No.200, Xiaolingwei Road, Xuanwu District, Nanjing 210094, China (e-mail: {799339229@qq.com, 932164927@qq.com, clp2005@hotmail.com, chenwh_nust@sina.com}).
Yingying Ma is with Solvay (China) Co., Ltd., Shanghai 201108, China (e-mail: mayingying100@gmail.com).

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Cite: Jun Zhang, Yingying Ma, Shuxin Chen, Liping Chen, and Wanghua Chen, "Thermal Decomposition and Safety Assessment of N-Nitrodihydroxyethyl Dinitrate by DSC and ARC," International Journal of Materials, Mechanics and Manufacturing vol. 8, no. 3, pp. 119-125, 2020.

Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).