PHYSICOCHEMICAL CHARACTERIZATION OF A FEW CLAYS FROM ASSAM, INDIA

Author(s): Dipa Dey

Abstract

A few clay samples are collected from Karbi Anglong and North Cachar districts in Assam (India), were characterized with respect to moisture content, LOI, CEC, SiO2, Al2O3, Fe2O3, CaO, K2O, TiO2, P2O5, Na2O, MgO, and various trace elements and rare earth elements. The XRD measurement indicated that the predominant clay mineral present in the clays was kaolinite with some amount of quartz impurities. The IR measurements yielded appropriate frequencies expected for the OH and SiO stretching regions, and OH and SiO bending regions in kaolinite, and the data complemented the conclusions drawn from XRD analysis.

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