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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 7
BKCSDE 33(7)
July 20, 2012 

 
Title
Structural and Thermal Characteristics of a High-Nitrogen Energetic Material: G(AHDNE)
Author
Lei Lü*, Kangzhen Xu*, Hang Zhang, Gang Wang, Jie Huang, Bozhou Wang, Fengqi Zhao
Keywords
1,1-Diamino-2,2-dinitroethylene (FOX-7), 1-Amino-1-hydrazino-2,2-dinitroethylene (AHDNE), Guanidine salt, Synthesis, Thermal properties
Abstract
A high-nitrogen energetic salt, 1-amino-1-hydrazino-2,2-dinitroethylene guanidine salt [G(AHDNE)], was synthesized by reacting of 1-amino-1-hydrazino-2,2-dinitroethylene (AHDNE) and guanidine hydrochloride in sodium hydroxide aqueous solution. The theoretical investigation on G(AHDNE) was carried out by B3LYP/ 6-311+G* method. The thermal behaviors of G(AHDNE) were studied with DSC and TG-DTG methods, and the result presents an intense exothermic decomposition process. The enthalpy, apparent activation energy and pre-exponential constant of the process are −1060 J g−1, 148.7 kJ mol−1 and 1015.90 s−1, respectively. The critical temperature of thermal explosion of G(AHDNE) is 152.63 °C. The specific heat capacity of G(AHDNE) was studied with micro-DSC method and theoretical calculation method, and the molar heat capacity is 314.69 J mol−1 K−1 at 298.15 K. Adiabatic time-to-explosion of G(AHDNE) was calculated to be a certain value between 60-72 s. The detonation velocity and detonation pressure were also estimated. G(AHDNE) presents good performances.
Page
2352 - 2358
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