POTASSIUM FIXATION IN CLAY MINERALS AS RELATED TO CRYSTAL STRUCTURE
- 1 January 1951
- journal article
- research article
- Published by Wolters Kluwer Health in Soil Science
- Vol. 71 (1) , 1-14
- https://doi.org/10.1097/00010694-195101000-00001
Abstract
The total amt. of K fixed in 21 type clay minerals apparently increases with increasing tetrahedral charge. The order of increasing crystal lattice K for minerals studied was: Calif. bentonite, Wyo. bentonite, Putnam clay, and illite. Calculation of the max. oxygen radius for stable 14-fold coordination with alkali metals in the hexagonal oxygen networks of the clay surfaces showed that the value for such coordination with K is exactly 1.4 A., the observed value. K seems to form the most stable configuration; Rb and Na form less stable configurations, Cs and Li nonstable configurations in 14-fold coordination with oxygen.This publication has 2 references indexed in Scilit:
- Transformation of minerals of the montmorillonite family into 10 Å. micasMineralogical Magazine and Journal of the Mineralogical Society, 1949
- FIXATION OF POTASSIUM IN RELATION TO EXCHANGE CAPACITY OF SOILSSoil Science, 1947