Synthesis and Property of Energetic Dinitromethanide Salts and Their Thermal DecompositionReaction Kinetics

doi:10.3969/j.issn.1000-1093.2012.05.009

Acta Armamentarii ›› 2012, Vol. 33 ›› Issue (5): 560-565.doi: 10.3969/j.issn.1000-1093.2012.05.009

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Synthesis and Property of Energetic Dinitromethanide Salts and Their Thermal DecompositionReaction Kinetics

CAO Dan¹， SONG Jin-hong¹， HUANG Hai-feng¹， LIANG Li-xuan¹，

(1.School of Chemical Engineering and the Environment, Beijing Institute of Technology, Beijing 100081， China;2.State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

Received:2011-06-13 Revised:2011-06-13 Online:2014-03-04
Contact: CAO Dan E-mail:cdcy1987@163.com

Abstract

Abstract: 3,4,5-triamino-1,2,4-triazolium and N-carbbamoylguanidinium dinitromethanide salts were synthesized and characterized by using N-guanylurea hydrochloride and 3,4,5-triamido-1,2,4-triazole as starting materials. The Gaussian 03 program was used to calculate the enthalpies of formation of the newly synthesized salts based on actually measured density, the calculated detonation velocities were 8 933 m/s and 8 035 m/s, and the detonation pressures were 36.6 GPa and 28.4 GPa. the results show that the explosion properties of the salts are comparable to RDX. Their thermal behaviors and non-isothermal decomposition reaction kinetics were investigated by thermogravimetry and derivative thermogravimetry (TG-DTG). The calculated ΔS, ΔH and ΔG≠ were 3.60 J/（mol·K）, 125.54 kJ/mol and 123.96 kJ/mol, respectively.

Key words: applied chemistry, energetic salt, dinitromethane, detonation performance, thermal behavior, decomposition reaction kinetics

CLC Number:

CAO Dan， SONG Jin-hong， HUANG Hai-feng， LIANG Li-xuan，. Synthesis and Property of Energetic Dinitromethanide Salts and Their Thermal DecompositionReaction Kinetics[J]. Acta Armamentarii, 2012, 33(5): 560-565.

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Synthesis and Property of Energetic Dinitromethanide Salts and Their Thermal DecompositionReaction Kinetics

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