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    Characterisation of a munition grade lewisite mixture

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    01-01353.pdf (132.7Kb)
    Date
    2001
    Author
    Tørnes, John Aasulf
    Opstad, Aase Mari
    Bjerkeseth, Leif Haldor
    Optun, Odd Inge
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    Abstract
    The three compounds trans-lewisite I, all-trans-lewisite II and all-trans-lewisite III have been identified in a munition grade lewisite mixture probably originating from World War II. all-trans-Lewisite II and all-trans-lewisite III were the main constituents in the mixture. NMR was used to confirm the identifications made by GC-MS and to identify the correct stereoisomers (all-trans). The ESI-MS spectra turned out to be difficult to interpret. The two major compounds were tentatively identified as lewisite III oxide and lewisite II dioxidised dimer. The 3,4-dimercaptotoluene (DMT) derivative of lewisite I or of 2-chlorovinylarsonous acid/lewisite oxide was identified by GC-MS. 2-chlorovinylarsonous acid (in equilibrium with lewisite oxide) and lewisite I give identical DMT-derivatives. The NMR result shows that this derivative originated from lewisite I and not from the acid/oxide.
    URI
    http://hdl.handle.net/20.500.12242/2149
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