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SURFACE AREA AND ITS EFFECT ON EXCHANGE CAPACITY OF MONTMORILLONITE *
Author(s) -
Johnson A. L.
Publication year - 1949
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1949.tb19770.x
Subject(s) - montmorillonite , cation exchange capacity , kaolinite , particle size , particle (ecology) , specific surface area , chemical engineering , chemistry , mineralogy , materials science , geology , soil science , catalysis , organic chemistry , oceanography , engineering , soil water
A bstract The particle size and exchange capacity of several samples of montmorillonite were measured. It is shown that the particle size does influence the exchange capacity. Based on recent observations of thickness of particles, the surface area can be calculated more precisely; this in turn can be related to the exchange capacity. This relationship and that existing for kaolinite are compared. It is shown that the exchange capacity is directly related to the broken Si—O, Al—O, or Al—OH linkages.