Mechanism of disproportionation of ascorbate radicals
Journal Article
·
· J. Am. Chem. Soc.; (United States)
Existing data on the kinetics of ascorbate radical decay, together with some new data on the effects of temperature, ionic strength, and presence of phosphate buffers, suggest a mechanism in which the ascorbate radical ion is in equilibrium with a dimer. This dimer reacts with hydrogen ion, or with other proton donors present including water and buffers (at rates depending upon their acid strengths), to form the disproportionation products ascorbate ion and dehydroascorbate acid.
- Research Organization:
- Brookhaven National Lab., Upton, NY
- OSTI ID:
- 6205510
- Journal Information:
- J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 103:12; ISSN JACSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ANIONS
ASCORBIC ACID
BEAMS
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
DIMERS
ELECTRON BEAMS
EXPERIMENTAL DATA
INFORMATION
IONS
KINETICS
LEPTON BEAMS
NUMERICAL DATA
PARTICLE BEAMS
PH VALUE
PULSES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADICALS
RADIOLYSIS
REACTION KINETICS
TEMPERATURE DEPENDENCE
VITAMINS
400600* -- Radiation Chemistry
ANIONS
ASCORBIC ACID
BEAMS
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
DIMERS
ELECTRON BEAMS
EXPERIMENTAL DATA
INFORMATION
IONS
KINETICS
LEPTON BEAMS
NUMERICAL DATA
PARTICLE BEAMS
PH VALUE
PULSES
RADIATION CHEMISTRY
RADIATION EFFECTS
RADICALS
RADIOLYSIS
REACTION KINETICS
TEMPERATURE DEPENDENCE
VITAMINS