Review Article
Distribution and Fate of Military Explosives and Propellants in Soil: A Review
Table 2
Physical and chemical properties of selected explosives and propellants.
| | Energetic compound | TNT | RDX | HMX | NG | NQ | 2,4-DNT | Ammonium perchlorate |
| | CAS Number | 38082-89-2 | 00121-82-4 | 026914-41-0 | 55-63-0 | 556-88-7 | 121-14-2 | 14797-73-0 | | Chemical formula | C7H5N3O6 | C3H6N6O6 | C4H8N8O8 | C3H5(NO3)3 | CH4N4O | C7H6N2O4 | NH4ClO4 | | MW | 227.13 | 222.26 | 296.16 | 227.00 | 104.07 | 182.15 | 117.49 | | Melting point (°C) | 80–82 | 204 | 276–280 | 14 | 239 | 64–66 | (decomposes) | | Boiling point (°C) | 240 (explodes) | (decomposes) | (decomposes) | 50–60 (decomposes) | 250 | 300 (decomposes) | (decomposes) | | Solubility in water (mg/L) | 130 (20°C) | 42 (20°C) | 5 (25°C) | 1,250 to 1,950 mg/L | Soluble in water | 270 | Soluble in cold water, methanol, acetone;
2.49 × 105 mg/L | | Specific gravity | 1.5–1.6 | 1.89 | 1.96 | 1.59 | n/a* | 1.65 | 1.95 | Vapor pressure
(1 bar, 20°C) | 7.2 × 10−9 | 5.3 × 10−12 | 4.3 × 10−17 | 2.6 × 10−4 | | 2.2 × 10−4 (25°C) | Negligible | Henry’s Law Constant
(bar m3 mol−1) | 4.57 × 10−7 to 1.1 × 10−8 | 6.3 × 10−8 to 1.96 × 10−11 | 2.6 × 10−15 | 2.71 × 10−7 atm m3/mole, 25°C (est.) | n/a | 1.86 × 10−7 atm m3/mole, 25°C (est.) | Negligible | | Octanol/water partitioning coefficient, Log | 1.86 | 0.86 | 0.061 | 1.62 | n/a | 1.6–1.99 | Negligible | | Ref | 1 | 1 | 1, 42 | 43-46 | 56, 60 | 1, 43, 46–48 | 49 |
|
|
*n/a = not available.
|
