Accession Number:

ADA499146

Title:

Reactions of VX, GD and HD With Nanotubular Titania

Descriptive Note:

Journal

Corporate Author:

NORTH CAROLINA UNIV AT CHAPEL HILL

Personal Author(s):

Report Date:

2008-01-01

Pagination or Media Count:

10.0

Abstract:

Reactions of VX O-ethyl-S-2-diisopropylethylaminoethyl methylphosphonothioate, GD pinacolyl methylphosphonofluoridate, and HD bis2-chloroethyl sulfide have been examined with nanotubular titania NTT using 31P and 13C MAS NMR. All three agents hydrolyze on NTT with the reaction of VX being notably fast t12 30 min, approaching the rate achievable with liquid decontaminants. 31P MAS NMR reveals that VX is adsorbed within the NTT tubules andor its titania layers, perhaps providing optimum conditions for its Reactions of VX O-ethyl-S-2-diisopropylethylaminoethyl methylphosphonothioate, GD pinacolyl methylphosphonofluoridate, and HD bis2-chloroethyl sulfide have been examined with nanotubular titania NTT using 31P and 13C MAS NMR. All three agents hydrolyze on NTT with the reaction of VX being notably fast t12 30 min, approaching the rate achievable with liquid decontaminants. 31P MAS NMR reveals that VX is adsorbed within the NTT tubules andor its titania layers, perhaps providing optimum conditions for its hydrolysis by water sandwiched between the layers. Consistent with the availability of copious water on NTT, HD is hydrolyzed to its CH-TG sulfonium ion. GD hydrolysis is similarly efficient, with its products-PMPA and HF-attacking the titania structure to form a titanophosphonate species.

Subject Categories:

  • Organic Chemistry
  • Chemical, Biological and Radiological Warfare

Distribution Statement:

APPROVED FOR PUBLIC RELEASE