Methyl viologen radical reactions with several oxidizing agents. [Gamma Radiation]

Journal Article · Sat Jan 01 04:00:00 EST 1983 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100228a026· OSTI ID:6230683

Levey, G; Ebbesen, T W

The rates of oxidation of the methyl viologen radical by peroxodisulfate and hydrogen peroxide has been investigated. The methyl viologen free radical was produced by pulse radiolysis. The reaction of the peroxodisulfate radical with the methyl viologen radical was first order in both species, and the reaction rate constant is reported. A el-radiation study revealed a chain decomposition of the peroxodisulfate radical involving the methyl viologen radical when methanol, ethanol, or 2-propanol was present. Loss of the methyl viologen radical was then no longer observed to be a simple first-order reaction. The reaction of hydrogen peroxide with the methyl viologen radical was very slow in the presence of 1 M methanol. A much faster reaction in the absence of methanol was interpreted to be a reaction of the methyl viologen radical with the peroxy radicals. Hydrogen peroxide, in contrast to the chain decomposition of peroxodisulfate radicals, does not participate in a chain reaction involving the methyl viologen radical and methanol. Rate constants for the reaction of methyl viologen radical with dichromate radical, iodate radical, and ferricyanide radical are reported.

• Research Organization: Univ. of Notre Dame, IN
• OSTI ID: 6230683
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 87:5; ISSN JPCHA
• Country of Publication: United States
• Language: English

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AZINES
BIPYRIDINES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTIONS
CHEMISTRY
CHROMATES
CHROMIUM COMPOUNDS
COMPLEXES
DATA
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
FERRICYANIDES
GAMMA RADIATION
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
HYDROGEN PEROXIDE
INFORMATION
IODATES
IODINE COMPOUNDS
IONIZING RADIATIONS
IRON COMPLEXES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PEROXIDES
PERSULFATES
PYRIDINES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
REDOX REACTIONS
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPLEXES
TRANSITION ELEMENT COMPOUNDS