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Owing to its stability at high temperature and its excellent performance, HNS has several applications in the aerospace, ammunition and oil & gas industries, where thermal and/or vacuum stability are required.

EURENCO produces HNS in all particle sizes, for different applications:

  • HNS Type I for space and military pyrotechnical devices (cap relays, detonating cords, transmission cords and booster charges for I.M. applications): it brings heat resistance, low sensitivity and high performance.
  • HNS Type II for shaped charges for the oil & gas industry: thanks to excellent thermal stability, it is used in perforating and cutting charges when the requirement of high temperature resistance is important.
  • HNS Type III for artillery ammunition filling: it is used as anti-crack additive in TNT-based compositions.
  • HNS Type IV for slapper detonators: due to high sensitivity and good reliability characteristics, it is used as an ignition explosive in slapper detonators (the surface area is above 10 m²/g). A purification process makes it significantly more thermally stable than stipulated in military specifications.


HNS (EURENCO octobre 2012 / Suède)

Product description:

  • Chemical names: HNS, 1,1’-(1,2-ethenediyl)bis(2,4,6-trinitrobenzene)
  • CAS number: 20062-22-0
  • Chemical formula: C14H6N6O12

EURENCO manufactures all different types of HNS from type I to type IV:

  • HNS Type I: produced according to WS 5003F specification (more stable than stipulated in the MIL-specification)
  • HNS Type II: produced according to WS 5003F specification
  • HNS Type III: produced under German and US specifications
  • HNS type IV: significantly more thermally stable than stipulated in the military specifications


Product characteristics:

  • Melting point: 316 – 318 °C
  • Heat of combustion: -6 434.2 ± 5.0 kJ/mol solid phase
  • Density: 1.74 g/cm3
  • Detonation velocity: 7 000 to 7 100 m/s
  • Volume of detonation gases: 700 l/kg
  • Impact sensitivity: 5 J
  • Friction sensitivity: 240 N