Composition 69 Zinc 19 Potassium perchlorate 12 HexachlorobenzeneDescriptionHeat of reaction: 2.579 kJ/g, Gas volume: 62 cm3/g, ignition temperature: 475°C, impact sensitivity test: 15% of TNT Source: Kirk-Otthmer technical encyclopedia[8], chapter 'Explosives and Propellants'.