Article
Dissolution of Composition B Detonation Residuals
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Abstract
Composition B (Comp B) detonation residuals pose environmental concern to the U. S. Army because hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX), a constituent, has contaminated groundwater near training ranges. To mimic their dissolution on surface soils, we dripped water at 0.51 mL/h onto individual Comp B particles (0.1−2.0 mg) collected from the detonation of 81-mm mortars. Analyses of the effluent indicate that the RDX and 2,4,6-trinitrotoluene (TNT) in Comp B do not dissolve independently. Rather, the relatively slow dissolution of RDX controls dissolution of the particle as a whole by limiting the exposed area of TNT. Two dissolution models, a published steady-flow model and a drop-impingement model developed here, provide good agreement with the data using RDX parameters for time scaling. They predict dissolution times of 6−600 rainfall days for 0.01−100 mg Comp B particles exposed to 0.55 cm/h rainfall rate. These models should bracket the flow regimes for dissolution of detonation residuals on soils, but they require additional data to validate them across the range of particle sizes and rainfall rates of interest.
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This article has been cited by 4 ACS Journal articles (4 most recent appear below).

Dissolution of Microscale Energetic Residues in Saturated Porous Media: Visualization and Quantification at the Pore-Scale by Spectral Confocal Microscopy
Chao Wang, Volha Lazouskaya, Mark E. Fuller, Jeffrey L. Caplan, Charles E. Schaefer, and Yan JinEnvironmental Science & Technology2011 45 (19), 8352-8358Dissolution of Microscale Energetic Residues in Saturated Porous Media: Visualization and Quantification at the Pore-Scale by Spectral Confocal Microscopy
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Richard A. PriceMichelle BourneCynthia L. PriceJay LindsayJim Cole2011 (), 229-240Transport of RDX and TNT from Composition-B Explosive During Simulated Rainfall
Richard A. PriceMichelle BourneCynthia L. PriceJay LindsayJim Cole2011 (), 229-240A complete understanding of the fate of munitions constituents (MC) on U.S. Army training lands is needed to develop the fundamental framework for the contaminant transport, transformation and fate (CTT&F) model for predicting the impacts of training ...

The Contaminant Transport, Transformation, and Fate Sub-Model for Predicting the Site-Specific Behavior of Distributed Sources (Munitions Constituents) on U.S. Army Training and Testing Ranges
Zhonglong ZhangBilly E. Johnson2011 (), 241-272The Contaminant Transport, Transformation, and Fate Sub-Model for Predicting the Site-Specific Behavior of Distributed Sources (Munitions Constituents) on U.S. Army Training and Testing Ranges
Zhonglong ZhangBilly E. Johnson2011 (), 241-272Contaminant Transport, Transformation and Fate (CTT&F) sub-model was developed for coupling with existing watershed hydrological modeling systems to predict the site-specific behavior of distributed sources (munitions constituents) on U.S. Army training ...

Dissolution of High Explosives on Range Soils
Susan TaylorJames H. LeverJennifer FaddenSusan R. BiglNancy M. PerronKathleen F. JonesBonnie Packer2011 (), 139-155Dissolution of High Explosives on Range Soils
Susan TaylorJames H. LeverJennifer FaddenSusan R. BiglNancy M. PerronKathleen F. JonesBonnie Packer2011 (), 139-155High explosives (HE) are deposited onto military range soils by live-fire training. A critical problem facing range managers is how to determine if explosives from training activities are likely to migrate off base, an outcome that might trigger federal ...
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History
- Published In Issue November 15, 2005
- Received for review March 16, 2005
Revised manuscript received July 10, 2005
Accepted August 29, 2005
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