Thermal decomposition of peroxydisulfate in aqueous solutions of benzene-nitrobenzene-benzonitrile mixtures. Formation of OH radicals from benzene radical cations and water at room temperature
Journal Article
·
· J. Am. Chem. Soc.; (United States)
The thermal decomposition of Na/sub 2/S/sub 2/O/sub 8/ in aqueous solutions of benzene and nitrobenzene at 80/sup 0/C, 40/sup 0/C, and room temperature gives phenol, biphenyl, and o- and p-nitrophenol. In the absence of benzene no nitrophenols were formed under otherwise identical conditions. We have previously suggested a dissociation of the intermediate hydroxycyclohexadienyl radicals to OH radical and benzene. On the basis of the kinetics of the reactions involved and the E/sub a/ and A values for the dissociation of hydroxycyclohexadienyl radicals, we have estimated that under our reaction conditions even at room temperature a considerable fraction of the hydroxycyclohexadienyl radicals dissociates to OH radicals and benzene. In addition to nitrobenzene we have used benzonitrile as a scavenger for OH radicals. The results of competition experiments between benzene, nitrobenzene, and benzonitrile are consistent with the formation of free OH radicals.
- Research Organization:
- Univ. of Puerto Rico Medical Sciences Campus, San Juan
- OSTI ID:
- 6448238
- Journal Information:
- J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 104:25; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400600* -- Radiation Chemistry
ALKALI METAL COMPOUNDS
AROMATICS
BENZENE
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
EXPERIMENTAL DATA
HYDROCARBONS
HYDROXYL RADICALS
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
RADICALS
REACTION KINETICS
SODIUM COMPOUNDS
SULFUR COMPOUNDS
SULFUR OXIDES
SYNTHESIS
THERMOCHEMICAL PROCESSES
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400600* -- Radiation Chemistry
ALKALI METAL COMPOUNDS
AROMATICS
BENZENE
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
EXPERIMENTAL DATA
HYDROCARBONS
HYDROXYL RADICALS
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
RADICALS
REACTION KINETICS
SODIUM COMPOUNDS
SULFUR COMPOUNDS
SULFUR OXIDES
SYNTHESIS
THERMOCHEMICAL PROCESSES