Crystal Structures, Thermal Behavior Analysis and Thermal Safety of Two Energetic Salts of Hydrazinyl-1,2,4,5-tetrazine with 3,5-Dinitrosalicylic Acid

被引：4
作者：
Chen Xiang [1 ]
Zeng Tian [1 ]
Zhang Cong [1 ]
Guo Zhaoqi [1 ]
Li Shuailei [1 ]
Mai Tao [1 ]
Gao Rong [2 ]
Ma Haixia [1 ]
机构：
[1] Northwest Univ, Sch Chem Engn, Xian 710069, Shaanxi, Peoples R China
[2] Northwest Univ, Coll Chem & Mat Sci, Xian 710069, Shaanxi, Peoples R China
来源：
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 2018年 / 34卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Tetrazine compound; Dinitrosalicylic acid(DNS); Crystal structure; Thermal behavior; Thermal safety; NONISOTHERMAL DECOMPOSITION KINETICS; TIME-TO-EXPLOSION; ADIABATIC TIME; HEAT-CAPACITY; TETRAZINES;
D O I：
10.1007/s40242-018-8169-z
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Two energetic salts, DPHT DNS H2O(1) and DHT 2DNS 2H(2)O(2)[DPHT=3-(3,5-dimethyl-1H-pyrazol-1-yl)-6-hydrazinyl-1,2,4,5-tetrazine; DHT=3,6-dihydrazinyl-1,2,4,5-tetrazinel, were synthesized from S-tetrazine with 3,5-dinitrosalicylic acid(DNS). Compounds 1 and 2 were structurally characterized by elemental analysis, infrared spectroscopy, and single-crystal X-ray diffraction. The thermal behavior of the title compounds was studied by differential scanning calorimetry(DSC) and thermogravimetry(TG). The non-isothermal decomposition kinetics of compound 2 were investigated. The self-accelerating decomposition temperature, thermal ignition temperature, and critical temperatures of thermal explosion were obtained to evaluate the thermal safety of compound 2. The results show compounds 1 and 2 decompose at 150.8 and 179.2 degrees C, respectively. The T-SADT and T-b of compound 2 are higher than those of DHT, which indicates compound 2 is a potential candidate for energetic materials that have good thermal stability.
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收藏
页码：959 / 964
页数：6
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