Physical Chemistry Laboratory, Department of Applied Chemistry, University of Calcutta, Calcutta, West Bengal
Humic substances as extracted from pond sediment, were interacted with organic matter-free H-clay and metal-H-clay and infrared spectra of these products are presented. The study reveals that the bonding in clay-organic matter system is mainly physical in nature rather than chemisorption type.
Na-H-clay, Ca-H-clay, infrared absorption bonds, soil organic matter on clays
