Infrared Absorption Evidence on Exchange Reaction Mechanism of Copper and Zinc with Layer Silicate Clays and Peat1

摘要: The degree to which cations form weak bases are sorbed in excess of strong is shown be about 10% montmorillonite and 40% peat. These excesses were accounted for by a special reaction mechanism was revealed when layer silicate clays or peat fractions examined an infrared absorption technique. Copper zinc saturation decreased the 2.8 micron hydroxyl intensity montmorillonite, vermiculite, kaolinite, indicating with octahedral OH silicates. larger peak kaolinite at 2.7 microns not affected. Also, copper treatment yielded additional pair peaks 6.4 7.0 microns. Aluminum iron tended increase slightly. resulted numerous shifts double bond region spectrum, indicative chelation C = O N groups.