ION-EXCHANGE REACTIONS OF CESIUM
Column leaching experiments with 0.001N CsCl lN KCl, or CaCl/sub 2/ showed Cs sorption by a number of clays to be much larger from Ca than from K solutions. The sorption affinity of Cs relative to the complementary ion corresponded with that found by others for the Cs-K ion pair, but in Cs-Ca systems the Cs was sorbed to a larger extent than would have been expected from the results of experiments where Cs-Ca ratios in the equilibrium solution were not so small. While all except a very small proportion of the sorbed Cs was displaced on leaching with lN KCl, some 36 times as much remained after leaching with equal volumes of 1N CaCl/sub 2/. Vermiculite sorbed very large amounts of Cs (about 1/3 of exchange capacity) from 0.001N CsCl-1N CaCl/sub 2/. The sorbed Cs was largely fixed against exchange with lN CaCl/sub 2/. This suggests that Cs contained in interlayer spaces of vermiculite results in interplanar distances that will admit K but not Ca. (auth)
- Research Organization:
- Univ. of California, Riverside
- NSA Number:
- NSA-17-039071
- OSTI ID:
- 4657251
- Journal Information:
- Soil Sci. Soc. Am. Proc., Journal Name: Soil Sci. Soc. Am. Proc. Vol. Vol: 27
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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