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Effect of Surface Density of Charge on the Physical Swelling of Lithium Montmorillonite

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Abstract

THE crystalline swelling of lithium montmorillonite before and after heating has been investigated by several workers1–3. Hofmann and Klemen1 suggested that, on heating, the small lithium ion migrated into the crystal lattice to occupy a vacant octahedral site with consequent neutralization of the charge originating in that layer due to the isomorphous replacement of Al3+ by Mg2+. They termed this ‘place exchange’. This process gives rise to marked reduction in crystalline swelling.

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References

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Authors and Affiliations

  1. Department of Agricultural Chemistry, Waite Agricultural Research Institute, University of Adelaide,

    J. P. QUIRK & B. K. G. THENG

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  1. J. P. QUIRK
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  2. B. K. G. THENG
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QUIRK, J., THENG, B. Effect of Surface Density of Charge on the Physical Swelling of Lithium Montmorillonite. Nature 187, 967–968 (1960). https://doi.org/10.1038/187967a0

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