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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



(cyclotetramethylenetetranitramine), a powerful explosive; colorless, water-insoluble crystals. Density, 1.96 g/cm3 at 20°C; melting point, 278.5°–280°C; flash point, about 290°C.

Octogen is produced by treatment of hexamethylenetetramine with a mixture of nitric acid and acetic anhydride in the presence of acetic acid and ammonium nitrate. It is superior to cyclonite

in its explosive characteristics (rate of detonation, 9.1 km/sec at a density of 1.84 g/cm3; heat of explosion, 5.7 megajoules per kg, or 1,356 kcal/kg).

Octogen is of interest as a heat-resistant explosive (it is used at temperatures up to 210°C) for drilling high-temperature oil and gas wells.


Orlova, E. Iu. Khimiia i tekhnologiia brizantnykh vzryvchatykh vesh-chestv, 2nd ed. Leningrad, 1973.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The new 108MP ISOCELL Bright HMX camera also supports video recording.
Mass production for Samsung ISOCELL Bright HMX will begin later this month.
For advanced filming, the HMX supports video recording without losses in field-of-view at resolutions up to 6K (6016 x 3384) 30-frames-per-second (fps).
Mix different mass percentages of Al powder (0%, 10 wt.%, 20 wt.%, and 30 wt.%), respectively, with RDX, HMX, and CL-20 uniformly.
On the basis of the refinement and coating mechanism of the fire explosive, through the self-made nozzle and pressure device, and on the basis of ensuring that the crystal structure of explosives does not change, combining the refinement and coating of explosives can solve some of the problems in existing HMX coating; for example, the coated particle size is larger, the particles are distributed unevenly, and the effect of reducing the sensitivity is poor.
In this paper, based on the distribution of micron scale explosive particles, a microscopic model is established to describe the process of ignition of HMX particles.
As other charges (TNT, HMX, and PYX) are used in perforation bullet, it is needed to modify the peak pressure and the pressure of stable stage.
The company entered the defence sector four years ago and has set up India's first HMX plant in the private sector, a large composite propellant plant and facilities for producing other products like pyros and war heads.
In the Women's Division, team Bavaria Taif Tennis (sponsored by Quality Trading Company) bagged the LMX plaque while Team Uricane was the winner in the HMX category.
The microTLC uses aluminum-backed reverse-phase C18 TLC plates--chromatoplate (RP-18)--to identify common military explosives (i.e., TNT, tetryl, picric acid, Explosive D, RX and HMX) all on one plate.
Gun, grenade with fuse, detonator, six sticks of explosive HMX weighing 540 grams, 44 grams of plastic explosives and a map of the regional center were found and seized in his apartment.