| Main Title |
Electrode Measurement of Redox Potential in Anaerobic Ferric/Ferrous Chloride Systems. |
| Author |
Grundl, T. J. ;
Macalady., D. L. ;
|
| CORP Author |
Colorado School of Mines, Golden. Dept. of Chemistry and Geochemistry.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
| Publisher |
c1989 |
| Year Published |
1989 |
| Report Number |
EPA-R-813077; EPA/600/J-89/386; |
| Stock Number |
PB90-246075 |
| Additional Subjects |
Anaerobic processes ;
Electrode potentials ;
Iron chlorides ;
Iron ;
Oxidation ;
Hydrology ;
pH ;
Geochemistry ;
Cations ;
Electrochemistry ;
Reduction(Chemistry) ;
Thermodynamic properties ;
Nernst effect ;
Experimental design ;
Water pollution ;
Chemical equilibrium ;
Reprints ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-246075 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
23p |
| Abstract |
The behavior of two inert redox electrodes (Pt and wax-impregnated graphite) was investigated in anaerobic ferrous and ferric chloride solutions in order to establish if these electrodes respond to the Fe(3+)/Fe(2+) couple in a Nernstian manner. A new method for determining dissolved ferric iron at any point in time was used which permitted the calculation of Eh values that are independent of variations in the solubility of ferric oxyhydroxides. This method is applicable to simple iron solution at pH levels of 4 or less. In solutions of ionic strength greater than 0.005M, both electrodes yielded measured potentials that correspond to the value calculated by the Nernst equation. In solutions of ionic strength less than 0.005M, electrode response became non-Nernstian behavior. (Copyright (c) 1989 Elsevier Science Publishers B.V.) |
| Supplementary Notes |
Pub. in Jnl. of Contaminant Hydrology, v5 n1 p97-117 Dec 89. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Electrode Measurement of Redox Potential in Anaerobic Ferric/Ferrous Chloride Systems. |
| Category Codes |
99F; 48G; 48F; 68D |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/15 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
024228612 |
| Origin |
NTIS |
| Type |
CAT |
