Abstract

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

Highlights

  • N-Nitrodihydroxyethyl dinitrate (DINA), an explosive as well as high-energy plasticizer, was widely used in double-base propellant production

  • The specific heat capacity of DINA was measured based on a linear ramp method using differential scanning calorimeter (DSC)

  • The basic chemical or physical properties and the thermokinetic characteristics of DINA have been obtained by carring out DSC and accelerating rate calorimeter (ARC) tests, which could provide more information for determining the decomposition kinetic parameters and estimating some critical thermal hazard parameters, to optimize the conditions of storage and transportation for chemical, minimize industrial disasters

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Summary

INTRODUCTION

N-Nitrodihydroxyethyl dinitrate (DINA), an explosive as well as high-energy plasticizer, was widely used in double-base propellant production. Determining on which the physicochemical properties and the thermal hazard parameters, especially for the calculation of exothermic properties and thermal explosion performance parameters of high-energy compounds [3]-[5]. The thermal explosion hazard and decomposition progress of DINA were investigated by DSC and ARC to acquire thermodynamic parameters (e.g. Tonset, Tp and ΔHd) for self-heat reactions. 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, minimize industrial disasters [6], [7]

EXPERIMENTAL
Calculation of Specific Heat Capacity
1) Experimental results and analysis
ARC Experiments
Prediction of SADT Based on the Non-isothermal DSC Data
CONCLUSIONS
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