Nine red soil clays were subjected to potentiometric titration studies to identify the possible clay min - eral make up.The qualitative evidence based upon the number of inflection points of potentiometric -titration curves was found to be unreliable.instead.the radio of buffer capacities below and beyond the first demarcation point has been established as a parameter for the identification of the possible clay minerals which decreased with the increase in the proportion of montmorillonite like minerals.
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