Insensitive high explosives: VI. experimental determination of the chemical compatibility of nitroguanidine with seven high explosives**

IF 1.7 4区工程技术 Q3 CHEMISTRY, APPLIED

Propellants, Explosives, Pyrotechnics Pub Date : 2024-01-30 DOI:10.1002/prep.202300055

Manfred A. Bohn, Moritz Heil, Heike Pontius, Ernst-Christian Koch

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Abstract

Two compatibility test types based on gas generation obtained by vacuum stability test (VST) procedure and on heat generation obtained by heat flow microcalorimetry (HFMC) show that nitroguanidine (NGu), CAS-No. [556-88-7], is compatible with ammonium nitrate (AN), CAS-No. [6484-52-2], ammonium dinitramide (ADN), CAS-No. [140456-78-6], 1,1-diamino-dinitroethylene (FOX-7, DADNE), CAS-No. [145250-81-3], N-guanylurea dinitramide (FOX-12, GUDN, carbamoylguanidinium dinitramide), CAS-No. [217464-38-5], hexogen (RDX), CAS-No. [121-82-4], octogen (HMX), CAS-No. [2691-41-0], and trinitrotoluene (TNT), CAS-No. [118-96-7]. The evaluations with gas generation and heat generation were done using the so-called corresponding reactivity quantities R_V and R_Q, but the assessment criteria are in accordance with the present NATO standards. NGu and ADN show the rare case of reactivity with a negative assessment quantity, that is their inter-component reactivity quantities show negative values in R_V and R_Q. The evolved gas volume and the produced heat generation of the 1 : 1 mixture have lower values than the formally calculated values of the mixture. The root cause of this cannot be deduced with mere compatibility testing. A negative assessment quantity R_Q is also observed with NGu and TNT at 80 °C, but not at 70 °C.

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不敏感的烈性炸药：六、硝基胍与七种烈性炸药化学相容性的实验测定**

[140456-78-6]、1,1-二氨基二硝基乙烯（FOX-7，DADNE），CAS-No. [145250-81-3]、N-胍基二硝酰胺（FOX-12，GUDN，氨基甲酰基胍基二硝酰胺），CAS-No.[217464-38-5]、六六六（RDX）（化学文摘社编号：[121-82-4]）、八八六（HMX）（化学文摘社编号：[2691-41-0]）和三硝基甲苯（TNT）（化学文摘社编号：[118-96-7]）。气体生成量和发热量的评估是使用所谓的相应反应量 RV 和 RQ 进行的，但评估标准符合现行的北约标准。NGu 和 ADN 出现了罕见的负评估反应量，即它们的组分间反应量在 RV 和 RQ 中显示负值。1 . 1 混合物的挥发气体体积和产生的热量的数值低于正式标准：1 : 1 混合物的挥发气体量和产生的热量值低于混合物的正式计算值。这种情况的根本原因无法通过单纯的相容性测试来推断。在 80 °C 下，NGu 和 TNT 的 RQ 也出现负值，但在 70 °C 下则没有。

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来源期刊

Propellants, Explosives, Pyrotechnics 工程技术-工程：化工

CiteScore

4.20

自引率

16.70%

发文量

235

审稿时长

2.7 months

期刊介绍： Propellants, Explosives, Pyrotechnics (PEP) is an international, peer-reviewed journal containing Full Papers, Short Communications, critical Reviews, as well as details of forthcoming meetings and book reviews concerned with the research, development and production in relation to propellants, explosives, and pyrotechnics for all applications. Being the official journal of the International Pyrotechnics Society, PEP is a vital medium and the state-of-the-art forum for the exchange of science and technology in energetic materials. PEP is published 12 times a year. PEP is devoted to advancing the science, technology and engineering elements in the storage and manipulation of chemical energy, specifically in propellants, explosives and pyrotechnics. Articles should provide scientific context, articulate impact, and be generally applicable to the energetic materials and wider scientific community. PEP is not a defense journal and does not feature the weaponization of materials and related systems or include information that would aid in the development or utilization of improvised explosive systems, e.g., synthesis routes to terrorist explosives.