Record Display for the EPA National Library Catalog

RECORD NUMBER: 15 OF 22

OLS Field Name OLS Field Data
Main Title Reduction of Ionic Species by Fulvic Acid.
Author Skogerboe, R. K. ; Wilson, S. A. ;
CORP Author Colorado State Univ., Fort Collins. Dept. of Chemistry.;Environmental Research Lab., Athens, GA.
Year Published 1981
Report Number EPA-R-805183; EPA-600/J-81-677;
Stock Number PB84-142405
Additional Subjects Fulvic acid ; Chemical equilibrium ; Oxidation reduction reactions ; Mercury(Metal) ; Iron ; Iodine ; Oxidant ; Ions ; Ground water ; Surface water ; Chelating agents ; Complex compounds ; pH ; Geochemistry ; Water pollution ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB84-142405 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 10p
Abstract
Studies have shown that a fulvic acid derived from soil is capable of reducing Hg(II) to Hg(0), Fe(III) to Fe(II), and I2 and I3(-1) to I(-1) under conditions generally characteristic of natural waters. The evaluation indicates a reduction potential approximately 0.5 V (vs. normal hydrogen electrode) for fulvic acid which is in agreement with a previous estimate. Although the effect of pH on the reduction processes changes between redox couples, the results generally indicate that hydrogen ion is consumed when fulvic acid is oxidized. These results quite distinctly indicate that fulvic acid may play a prominent role in influencing the redox equilibria occurring in surface and ground waters. (Copyright (c) 1981 by the American Chemical Society).