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Ammonium Salts of the Heteropolyacids as Cation Exchangers

Nature volume 181, pages 1530–1531 (1958)Cite this article

Abstract

Terlet and Briau1 have found that variable amounts of the ammonium ions in an ammonium phosphomolybdate precipitate may be displaced by potassium ions, and to a lesser extent by sodium ions, when the precipitate is washed with neutral potassium nitrate or sodium sulphate solutions. These observations have been confirmed by Gisiger2 and by Thistle-thwaite3, who have found that approximately two of the three ammonium ions are exchanged for potassium.

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References

  1. Terlet, H., and Briau, A., Ann. Falsific., 28, 546 (1935).

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  2. Gisiger, L., Z. anal. Chem., 115, 15 (1938).

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  3. Thistlethwaite, W. P., Analyst, 72, 531 (1947).

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  4. Wells, A. F., “Structural Inorganic Chemistry”, p. 351, 2nd edit. (Clarendon Press, Oxford, 1950).

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Authors and Affiliations

  1. National Physical Research Laboratory, South African Council for Scientific and Industrial Research, Pretoria

    J. VAN R. SMIT

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  1. J. VAN R. SMIT
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SMIT, J. Ammonium Salts of the Heteropolyacids as Cation Exchangers. Nature 181, 1530–1531 (1958). https://doi.org/10.1038/1811530a0

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