Study of the influence of the synthesis process on the sublimation of TATP and HMTD by thermal gravimetric analysis

Chemical Thermodynamics and Thermal Analysis Pub Date : 2022-12-01 DOI:10.1016/j.ctta.2022.100086

L. Jeunieau, B. Simoens, M.H. Lefebvre

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Abstract

The influence of two important parameters in the synthesis of TATP (the type of catalyst and the presence or absence of stirring during the precipitation process) on its sublimation was studied by thermal gravimetric analysis. TATP synthesised with H₂SO₄ as catalyst and without stirring during the precipitation process sublimates faster than the other types, due to its transformation in DADP under influence of the presence of residual acid. Between the other types of TATP, where no transformation to DADP was observed, only small differences in sublimation rate were measured. These differences are related to their different sublimation temperatures as observed during DSC experiments.

The influence of the same synthesis parameters on the sublimation of HMTD was also investigated. Unlike TATP, HMTD decomposes during sublimation. This decomposition depends on the synthesis parameters. AKTS simulations show that the HMTD synthesis parameters have an influence on the temperature dependency of the kinetic parameters of the HMTD decomposition.

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热重分析法研究合成工艺对TATP和HMTD升华的影响

通过热重分析研究了合成TATP的两个重要参数（催化剂类型和沉淀过程中是否存在搅拌）对其升华的影响。用H2SO4作为催化剂，在沉淀过程中不搅拌合成的TATP比其他类型的TATP升华得更快，因为它在残留酸的影响下在DADP中转化。在没有观察到向DADP转化的其他类型的TATP之间，仅测量到升华速率的微小差异。这些差异与它们在DSC实验期间观察到的不同升华温度有关。研究了相同的合成参数对HMTD升华的影响。与TATP不同，HMTD在升华过程中分解。这种分解取决于合成参数。AKTS模拟表明，HMTD合成参数对HMTD分解动力学参数的温度依赖性有影响。

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来源期刊

Chemical Thermodynamics and Thermal Analysis

CiteScore

3.10

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0.00%

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