Columbus_2006_Environ.Sci.Technol_40_3952

Reference

Title : Decomposition of adsorbed VX on activated carbons studied by 31P MAS NMR - Columbus_2006_Environ.Sci.Technol_40_3952
Author(s) : Columbus I , Waysbort D , Shmueli L , Nir I , Kaplan D
Ref : Environ Sci Technol , 40 :3952 , 2006
Abstract :

The fate of the persistent OP nerve agent O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothioate (VX) on granular activated carbons that are used for gas filtration was studied by means of 31P magic angle spinning (MAS) NMR spectroscopy. VX as vapor or liquid was adsorbed on carbon granules, and MAS NMR spectra were recorded periodically. The results show that at least 90% of the adsorbed VX decomposes within 20 days or less to the nontoxic ethyl methylphosphonic acid (EMPA) and bis(S-2-diisopropylaminoethane) {(DES)2}. Decomposition occurred irrespective of the phase from which VX was loaded, the presence of metal impregnation on the carbon surface, and the water content of the carbon. Theoretical and practical aspects of the degradation are discussed.

PubMedSearch : Columbus_2006_Environ.Sci.Technol_40_3952
PubMedID: 16830567

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Inhibitor EMPA

Citations formats

Columbus I, Waysbort D, Shmueli L, Nir I, Kaplan D (2006)
Decomposition of adsorbed VX on activated carbons studied by 31P MAS NMR
Environ Sci Technol 40 :3952

Columbus I, Waysbort D, Shmueli L, Nir I, Kaplan D (2006)
Environ Sci Technol 40 :3952