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    The impact of oxalate ions on barium sulfate crystallization

    267879.pdf (733.2Kb)
    Access Status
    Open access
    Authors
    Jones, Franca
    Ogden, Mark
    Radomirovic, T.
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Jones, F. and Ogden, M. and Radomirovic, T. 2018. The impact of oxalate ions on barium sulfate crystallization. Journal of Crystal Growth. 498: pp. 148-153.
    Source Title
    Journal of Crystal Growth
    DOI
    10.1016/j.jcrysgro.2018.06.014
    ISSN
    0022-0248
    School
    School of Molecular and Life Sciences (MLS)
    URI
    http://hdl.handle.net/20.500.11937/69537
    Collection
    • Curtin Research Publications
    Abstract

    In this manuscript we investigate the impact of oxalate ions on the crystallization of barium sulfate. The organic anion, oxalate, was found to inhibit both nucleation and growth according to atomic force microscopy measurements and dynamic light scattering data. Raman confocal imaging was used to try and determine how the oxalate interacts with the barium sulfate surface. It was found that barium oxalate is only seen at very high oxalate concentrations. At lower concentrations no direct evidence for the presence of oxalate was observed, however, the most probable mode of action for oxalate is via adsorption onto the barium sulfate surface including into key kink or step sites, impacting growth.

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