An Answer to the Question about the Energetic Performance of TKX‐50

• Published in: Propellants, explosives, pyrotechnics Vol. 47; no. 6
• Main Authors: Klapötke, Thomas M., Cudziło, Stanisław, Trzciński, Waldemar A.
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01.06.2022
• Subjects: Density; Detonation; Detonation parameters; Detonation velocity; Enthalpy; EXPLO5 calculations; Gurney Energy; Heat of combustion; Parameters; Room temperature; TKX-50
• ISSN: 0721-3115; 1521-4087
• DOI: 10.1002/prep.202100358

Some of the relevant detonation performance parameters of TKX‐50 were re‐determined. The enthalpy of formation was obtained from the measured heat of combustion to be ΔH°f (TKX‐50(s))=+213.4±1.2 kJ mol−1. The heat of detonation was measured to be 4650±50 kJ kg−1. The detonation velocity of a TKX‐50/wax mixture (97 : 3) at a density of 1.74 g cm−3 was found experimentally to be 9190 m s−1. Using the experimentally obtained enthalpy of formation for TKX‐50 of +213.4 kJ mol−1 and the experimentally determined solid‐state density at room temperature of 1.887 g cm−3 (TMD), the computed performance parameters for TKX‐50 at its theoretical maximum density at room temperature was calculated to be as follows: VoD=9642 m s−1, pC‐J=37.0 GPa and Qdet=4770 kJ kg−1.