(27)Al, (47,49)Ti, (31)P, and (13)C MAS NMR Study oF VX, GB, GD and HD Reactions With Nanosize Al2O3, Al2O3, TiO2, Aluminum And Titanium
Abstract
Assorted reactions of VX, GB, GD and HD with Al2O3, TiO2 (anatase and rutile), aluminum and titanium metal powders have been studied by 27Al, 47,49Ti, 31P and 13C MAS NMR. VX, GB, GD and HD hydrolyze on both nanosize and conventional Al2O3. A significant droplet size effect on the reaction kinetics is observed. For VX, GB and GD, 27Al and 31P MAS NMR detect the formation of stable, precipitated aluminum phosphonate complexes, which would be environmentally-persistent. Similarly, GD hydrolysis on TiO2 yields titanium phosphonate species as detected by 31P MAS NMR. Attempts at obtaining 47,49Ti NMR spectra of these species and those of titanium phosphonate model compounds were marginally successful. 47,49Ti NMR spectra were obtainable for anatase, rutile and titanium metal; thus severe quadrupolar linebroadening is suspected for the titanium phosphonate complexes. GD reacted with aluminum and titanium powder in the presence of water results in acid-dissolution of the metals and the formation of their respective metal phosphonates.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2003
- Accession Number
- ADA483986
Entities
People
- George Wayne Wagner
- Lawrence R. Procell
- Shekar Munavalli
Organizations
- Edgewood Chemical Biological Center