Transactions of the INDIAN CERAMIC SOCIETY Vol. 27 1968
Electro-Chemical Behaviour of Some Interstratified
Clay Minerals
HRISHIKESH ROY*
Pages : 159-164
DOI : 10.1080/0371750X.1968.10855645
Abstract
pH-neutralisation curves of some natural clay samples containing inters/ratified
illite-montmorillonite minerals have been studied. It has been observed that their titration
curves are d(fferent from those of kaolinite, montmorillonite, illite and their
natural mixtures. Unlike these, the titration curves of samples containing interstratified
minerals show four inflections at pH ranges 5-6, 7-7.5, 8-9.5 and 10-10.5. The role of
associated clay and non-clayey materials on the nature of their titration curves has
been discussed. It has been observed that their influence is not very markedly manifested
on these curves and hence the titration characteristics of these samples have been
ascribed as due to inters/ratified illite-montmorillonite minerals mainly. Reasons for
the polybasic character of their curves have been discussed in relation to the surface
area of the samples and their crystal structure.
