Published December 9, 1987
| Version v1
Journal article
Studies of hypervalent iron in aqueous solutions. 1. Radiation-induced reduction of iron(VI) to iron(V) by CO2-
Description
Iron(VI) can be reduced in aqueous solutions to iron(V) by pulse radiolytically generated CO2-, k3 = (3.5 +/- 0.1) x 108 M-1 s-1. The respective UV and visible spectra for these hypervalent oxidation states or iron are reported. It was found that formate reacts 105 times faster with Fe(V) than with Fe(VI). Other kinetic rate measurements include the following: k4[O2- + Fe(VI)] = (5.71 +/- 0.17) x 103, k[NADA + Fe(VI)] = 77.1 +/- 4.4, k[HCOONa + Fe(VI)] = (2.33 +/- 0.4) x 10-2, k[EtOH + Fe(VI)] = (1.47 +/- 0.7) x 10-3, k[DPTA + Fe(VI)] = (8.53 +/- 0.32) x 10-4, k[HCOONa + Fe(V)] = (2.48 +/- 0.32) x 103 M-1 s-1. The results are discussed in terms of their possible role in Fe(VI) oxidation processes
Additional details
Publishing Information
- Journal Title
- J. Am. Chem. Soc.
- Journal Volume
- 109
- Journal Issue
- 25
- Series
- J. Am. Chem. Soc.
- Journal Page Range
- 7761-7764
- ISSN
- 0002-7863
- CODEN
- JACSA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19081802
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; AQUEOUS SOLUTIONS; CHEMICAL REACTION KINETICS; EXPERIMENTAL DATA; FORMATES; IRON; MEDIUM TEMPERATURE; PH VALUE; PULSE TECHNIQUES; RADIOLYSIS; REDUCTION; SODIUM COMPOUNDS; ULTRAVIOLET SPECTRA; VALENCE; VISIBLE SPECTRA
- Descriptors DEC
- ALKALI METAL COMPOUNDS; CARBOXYLIC ACID SALTS; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; DATA; DECOMPOSITION; DISPERSIONS; ELEMENTS; HOMOGENEOUS MIXTURES; INFORMATION; KINETICS; METALS; MIXTURES; NUMERICAL DATA; RADIATION EFFECTS; REACTION KINETICS; SOLUTIONS; SPECTRA; SPECTROSCOPY; TRANSITION ELEMENTS