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http://hdl.handle.net/10204/2068
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| Title: | Determination of diffuse double layer protonation constants for hydrous ferric oxide (HFO): supporting evidence for the Dzombak and Morel compilation |
| Authors: | Pretorius, PJ
Linder, PW |
| Keywords: | Surface complexation
Diffuse double layer
Hydrous ferric oxide
Surface protonation
Adsorption
Biochemistry
Environmental sciences
Molecular biology |
| Issue Date: | 1998 |
| Publisher: | Science & Technology Letters |
| Citation: | Pretorius, PJ and Linder, PW. 1998. Determination of diffuse double layer protonation constants for hydrous ferric oxide (HFO): supporting evidence for the Dzombak and Morel compilation. Chemical Speciation and Bioavailability, vol. 10(2), pp 115-119 |
| Abstract: | The acid-base properties of hydrous ferric oxide were studied by glass electrode potentiometry. From the potentiometric data, surface protonation constants were derived according to the Diffuse Double Layer convention. Chemical equilibrium modelling of the experimental system suggests that titration points below pH 4 should not be used for the determination of protonation constants because of potential HFO dissolution. Surface protonation constant, PZC and binding site estimates agree excellently with currently available best estimates. |
| URI: | http://hdl.handle.net/10204/2068
http://hdl.handle.net/10204/2068 |
| ISSN: | 0954-2299 |
| Appears in Collections: | Discovery chemistry
General science, engineering & technology
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