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    Using XPS to determine solute solubility in room temperature ionic liquids

    Access Status
    Fulltext not available
    Authors
    Silvester, Debbie
    Broder, T.
    Aldous, L.
    Hardacre, C.
    Crossley, A.
    Compton, R.
    Date
    2007
    Type
    Journal Article
    
    Metadata
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    Citation
    Silvester, D. and Broder, T. and Aldous, L. and Hardacre, C. and Crossley, A. and Compton, R. 2007. Using XPS to determine solute solubility in room temperature ionic liquids. The Analyst. 132: pp. 196-198.
    Source Title
    The Analyst
    DOI
    10.1039/b700212b
    ISSN
    00032654
    URI
    http://hdl.handle.net/20.500.11937/4632
    Collection
    • Curtin Research Publications
    Abstract

    X-Ray Photoelectron Spectroscopy (XPS) was used to quantify the amount of bromide ions present in two samples of [C4mpyrr]Br dissolved in the room temperature ionic liquid (RTIL) [C4mpyrr][N(Tf)2]. One sample was of a known concentration (0.436 Br atom%); the other was a saturated solution. The results obtained from quantitative XPS analysis indicated that the saturated sample had a concentration, or solubility, of 0.90 Br atom% (746 mM) at 298 K, which was then independently confirmed by potential-step chronoamperometry of the same solution.

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