Title: Octogen
CAS Registry Number: 2691-41-0
CAS Name: Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine
Additional Names: 1,3,5,7-tetranitro-1,3,5,7-tetrazacyclooctane; cyclotetramethylene tetranitramine; HMX
Molecular Formula: C4H8N8O8
Molecular Weight: 296.16
Percent Composition: C 16.22%, H 2.72%, N 37.84%, O 43.22%
Literature References: Prepn: H. Fischer, Ber. 82, 192 (1949); A. F. McKay et al., Can. J. Res. 27, 462 (1949). Determn in explosives by infrared: W. Selig, U.S. Atomic Energy Commission UCRL-7873 (part II), 29 (1965); by HPLC: P. Vouros et al., Anal. Chem. 49, 1039 (1977). Mass spec: E. P. Burrows, Org. Mass Spectrom. 26, 1027 (1991). Thermal analysis of phases using x-ray diffraction: M. Herrmann et al., Z. Kristallogr. 204, 121 (1993). 14N-NMR: M. Kony et al., J. Org. Chem. 59, 5623 (1994). Review of syntheses and properties: B. Singh et al., Def. Sci. J. 28, 41-50 (1978); of thermal behavior: T. L. Boggs, Prog. Astronaut. Aeronaut. 90, 121-175 (1984). Review of toxicology and human exposure: Toxicological Profile for HMX (PB98-101058, 1997) 130 pp.
Properties: Highly explosive! White crystalline solid, mp 281°. Non-hygroscopic. Four polymorphic forms: a, b, g and d. Stability at 300 K: b>a>g>d. b is stable at room temp; a at 115-156°C; g at 156°C; d at ~170-279°C. Density (g/cm3): b=1.903; a=1.87; g=1.82; d=1.78. Practically insol in water.
Melting point: mp 281°
Density: Density (g/cm3): b=1.903; a=1.87; g=1.82; d=1.78
Use: In solid propellants and explosives. |