Kinetics of the alkaline hydrolysis of high explosives RDX and HMX in aqueous solution and adsorbed to activated carbon
Article Abstract:
The hydrolysis kinetics of the high explosives hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) for temperatures ranging from 50 to 80 degrees C and in the pH range from 10 to 12 were investigated. Results showed that the rate of RDX hydrolysis is much faster than the rate of HMX hydrolysis. The latter may become rate limiting in the treatment of RDX/HMX mixtures. The alkaline hydrolysis of RDX yields 1.6 M NO2-, 1.5 M HCOO-, 0.1 M CH3COO-, 1.1 M HCHO (11), 0.9 M NH3, 1.1 M N2O and 0.34 M N2 per mol of RDX hydrolyzed. A recovery of 94% carbon and 90% nitrogen was derived through mass balance. Acetate ion was found to be an unknown end product of the alkaline hydrolysis of RDX.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Soil component interactions wth 2,4-dichlorophenoxyacetic acid under supercritical fluid conditions
Article Abstract:
Several common soil constituents were chosen to determine which soil components are likely to limit the recovery of the acid herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) by supercritical fluid extraction. These model soil components included four minerals, silica gel, sodium humate and humic acid. Three potential factors inhibiting 2,4-D extraction were tested, namely, surface reactions, diffusion in porous materials and pH buffering. Organic matters was found to be generally the main component inhibiting extraction of 2,4-D from soils.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
Hydrolysis and oxidation of acetamide in supercritical water
Article Abstract:
The hydrolysis kinetics of acetamide in supercritical water (SCW) was faster than acetamide oxidation kinetics. This difference between hydrolysis and oxidation kinetics supports the use of SCW as an active reagent. Additionally, the use of hydrogen peroxide as an oxidant proved ineffective, and this result supports the use of oxidants that are just above stoichiometric demand.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Meeting the challenge with Castrol's products and services. Castrol lubrication maintenance puts you in control
- Abstracts: The human genome and other initiatives. Norwalk virus genome cloning and characterization. Managing the genome data deluge
- Abstracts: A new device for the simulation of indoor air pollution sources. Characterizing the sources of particulate lead in house dust by automated scanning electron microscopy
- Abstracts: Unlocking the secrets of longevity genes. Zinc fingers: they play a part in regulating the activity of genes in many species, from yeast to humans. Fewer than 10 years ago no one knew they existed