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The Cryptand [222] for Exchanging Cations of Micas

Published online by Cambridge University Press:  28 February 2024

Guido Bracke ,
Muharrem Satir  and
Peter Krauß
Guido Bracke
Affiliation:
Institut für Mineralogie, Petrologie und Geochemie, Universität Tübingen, Wilhelmstraße 56, D-72074, Tübingen
Muharrem Satir
Affiliation:
Institut für Mineralogie, Petrologie und Geochemie, Universität Tübingen, Wilhelmstraße 56, D-72074, Tübingen
Peter Krauß
Affiliation:
Institut für Organische Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen
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Abstract

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Cation exchange experiments were carried out on phlogopite, biotite, and muscovite using cryptand [222] as a complexing agent, dioxane as solvent, and Li as the exchanging cation. The results indicate greater than 90% exchange of the analyzed cations K+, Rb+, and Sr++ in phlogopite and biotite after two days. Similar results for the exchange in muscovite are observed but it is apparently slower. The amount of exchange observed for mica depends mainly on pH, time and the exchanging cation at a constant temperature. Residues of the mineral phase were also investigated by X-ray diffraction and a significant change of the interlayer spacing was detected. Some samples of the residue were analyzed for Li content. The compositions of the treated samples were in good agreement with the determined exchange of K+.

Keywords

BiotiteCryptandExchangeLithiumMicaMuscovitePhlogopitePotassiumRubidiumStrontium
Type
Research Article
Information
Clays and Clay Minerals , Volume 43 , Issue 6 , December 1995 , pp. 732 - 737
Copyright
Copyright © 1995, The Clay Minerals Society

References

Bashour, I., and Carlson, R. M. 1984. Rubidium as controlling factor in potassium release from micaceous minerals. Soil Sci. Soc. Am. J. 48: 1010–1013.Google Scholar
Bracke, G., Krauß, P., and Satir, M. 1992. Selective exchange of the cations K+, Rb+ and Sr++ of phlogopite, biotite and muscovite with the cryptand [222]. Beih. z. Eur. J. Mineral. 4.Google Scholar
Dietrich, B., Lehn, J.-M., and Sauvage, J. P. 1973. Cryptates: Control over bivalent/monovalent cation selectivity. J. Chem. Soc. Chem. Comm. 15–16.Google Scholar
Faure, G., 1986. Principles of Isotope Geology. New York: J. Wiley & Sons.Google Scholar
Geostandards Newsletter. 1989. Speciallssue July 1989, 13.Google Scholar
Jäger, E., Niggli, E., and Baethge, H. 1963. Two standard minerals, biotite and muscovite, for Rb-Sr and K-Ar age determinations, sample Bern 4 B and Bern 4 M from a gneiss from Brione, Valle Verzasca (Switzerland). Schweiz. Min. Petr. Mitt. 43: 465–470.Google Scholar
Keppler, H., 1990. Ion exchange reactions between dehy-droxylated micas and salt melts and the crystal chemistry of the interlayer cations in micas. Amer. Mineral. 75: 529–538.Google Scholar
Lehn, J.-M., and Sauvage, J. P. 1975. [222]-Cryptates: Stability and selectivity of alkali and alkaline-earth macro-bicylic complexes. JACS 97: 6700–6707.Google Scholar
Reed, M. G., and Scott, A. D. 1966. Extractable potassium in grundite illite: I. Method of extraction. Soil Sci. 102: 115–122.Google Scholar
Reichenbach, H. Graf von. 1968. Cation exchange in the interlayers of expansible layer silicates. Clay Miner. 7: 331–341.Google Scholar
Reichenbach, H. Graf von, and Rich, C. I. 1978. Preparation of dioctahedral vermiculites from muscovite and subsequent exchange properties. 9th International Congress of Soil Science. 72: 709–719.Google Scholar
Satir, M., 1974. Rb/Sr-Altersbestimmungen an Glimmem der westlichen Hohen Tauern: Interpretation und geolo-gische Bedeutung. Schweiz. Mineral. Petrogr. Mitt. 54: 213–228.Google Scholar
Satir, M., and Friedrichsen, H. 1986. Geochronological and stable isotope investigations of polymetamorphic rocks (Western Tauern Window, Austria). Neues Jahrbuch Miner. Abh. 154/3: 313–334.Google Scholar
Scales, P. J., Healy, T. W., and Evans, D. F. 1988. The zeta potential of muscovite mica: Counterion complexation by a macrocyclic ligand. J. Colloid Interface Sci. 124: 391–395.Google Scholar
Scott, A. D., and Smith, S. J. 1966. Susceptibility of interlayer potassium in micas to exchange with sodium. Clays & Clay Miner. 14th National Conference on Clays and Clay Minerals: 69–81.CrossRefGoogle Scholar
Weber, E., Patai, S., and Rappoport, Z. 1989. Crown Ethers and Analogs. New York: John Wiley & Sons.Google Scholar