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A scanning electron microscopic study of effects of adding neutral electrolytes to solutions of humic substances
Authors:Kunal Ghosh  M. Schnitzer
Affiliation:1. Department of Agricultural Chemistry and Soil Science, University of Calcutta, Calcutta India;2. Chemistry and Biology Research Institute, Agriculture Canada, Ottawa, Ont. KIA OC6 Canada
Abstract:Scanning Electron Microscopy (SEM) was used to observe effects of adding increasing concentrations of neutral salts on the shapes and sizes of humic acid (HA) and fulvic acid (FA) particles. The SEM micrographs showed gradual decreases in particle orientation as well as increases in fiber thicknesses as the neutral salt concentration was increased.
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