Thermochemical and Energy Characteristics of DNTF and DNFF

• Published in: Combustion, explosion, and shock waves Vol. 54; no. 2; pp. 147 - 157
• Main Authors: Kazakov, A. I., Dashko, D. V., Nabatova, A. V., Stepanov, A. I., Lempert, D. B.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.03.2018; Springer Nature B.V
• Subjects: Aluminum; Classical and Continuum Physics; Classical Mechanics; Combustion chambers; Control; Diffraction; Dynamical Systems; Engineering; Enthalpy; Nozzles; Physical Chemistry; Physics; Physics and Astronomy; Rocket propellants; Solid rocket propellants; Spacecraft components; Specific impulse; Vibration; X-ray diffraction; crystal structure; composite solid rocket propellant; bis(4-nitrofurazan-3-yl)furazan (DNTF) and 3,4-bis(4-nitrofurazan-3-yl)furoxan (DNFF); enthalpy of formation; specific impulse
• ISSN: 0010-5082; 1573-8345
• DOI: 10.1134/S001050821802003X

Bis(4-nitrofurazan-3-yl)furazan (DNTF) and 3,4-bis(4-nitrofurazan-3-yl)furoxan (DNFF) have been studied as potential components of composite solid rocket propellants. Their heats of combustion and enthalpies of formation have been determined experimentally. X-ray diffraction analysis has shown that the DNTF and DNFF crystals are orthogonal with the same space group P 2 1 2 1 2 1 . It has been found DNTF and DNFF are ineffective in rocket propellants with a hydrocarbon binder; however, when using DNTF for compositions without aluminum and with an active binder, it is easy to provide a specific impulse of 254.5 s at combustor and nozzle exit pressures of 40 and 1 atm, respectively, and at a density of 1.77 g/cm 3 , and when using DNFF, a specific impulse of 258 s at a density of 1.79 g/cm 3 .