Thermochemical and energy characteristics of 1,4-diethylbenzene

The standard enthalpy of formation of 1,4-diethynyl)benzene was determined experimentally to be 500.6 $\pm$ 6.7 kJ/mol. Calculations showed that 1,4-di(ethynyl)benzene has a relatively high adiabatic combustion temperature (about 1970 K at a pressure of 5 atm) and very high heat of combustion in oxygen (42 MJ/kg); therefore, 1,4-di(ethynyl)benzene can be used as the basis to develop an effective dispersant of solid fuel providing an adiabatic combustion temperature of up to 2500 K at a heat of combustion far exceeding the values that provide the HMX and other azides of N-heterocycles previously proposed for this purpose.