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A New Approach to Determination of Cation Exchange Capacity
Author(s) -
Fernando M. J.,
Burau R. G.,
Arulanandan K.
Publication year - 1977
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/sssaj1977.03615995004100040043x
Subject(s) - cation exchange capacity , kaolinite , illite , montmorillonite , dielectric , dispersion (optics) , clay minerals , chemistry , mineralogy , analytical chemistry (journal) , ion exchange , soil science , materials science , geology , soil water , environmental chemistry , ion , physics , optoelectronics , organic chemistry , optics
The dielectric dispersion (Δε 0 ), defined as the difference in the dielectric constant of a sample measured at 3 × 10 6 Hz and at 75 × 10 6 Hz, was linearly related to CEC of the sample. One linear relationship between Δε 0 and CEC was obtained for clay‐silica flour mixtures where CEC was varied by changing the proportion of clay in the sample as well as by using clays with different CEC (kaolinite, illite, montmorillonite). A second linear relationship, with somewhat different slope, was obtained between the Δε 0 and the CEC of natural soil samples.