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The Effect of Cation‐Exchange Capacity, Clay Content, and Fixation on Rubidium‐86 Diffusion in Soil and Kaolinite Systems
Author(s) -
Evans S. D.,
Barber S. A.
Publication year - 1964
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1964.03615995002800010029x
Subject(s) - kaolinite , soil water , chemistry , cation exchange capacity , rubidium , diffusion , clay minerals , clay soil , mineralogy , soil science , geology , potassium , organic chemistry , thermodynamics , physics
An investigation of the factors influencing the diffusion of Rb 86 in eight soils showed that the more strongly Rb 86 was absorbed by the soils the slower was the rate of diffusion. In leached soils that were dried after labeling, diffusion was correlated with the amount of Rb 86 fixed against NH 4 OAc extraction. In leached soils that were kept moist after labeling, diffusion was closely related to clay content and exchange capacity. In dilute kaolinite systems, diffusion was related to the amount of Rb 86 in solution.