Reactions of diethylhydroxylamine with radiolytically produced radicals in aqueous solutions

Journal Article · Thu Jun 28 04:00:00 EDT 1979 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100476a004· OSTI ID:6104847

Saunders, B B ^[1]; Gorse, Jr, R A

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1. Argonne National Lab., IL

The rates of reaction of OH, e/sub aq/-, and CO/sub 3//sup -/ with N,N-diethylhydroxylamine (DEHA) in aqueous solutions have been measured. The rates obtained are k(OH + DEHA) = 1.3 x 10/sup 9/M/sup -1/s/sup -1/,k(e/sub aq//sup -/ + DEHA) = 4.8 x 10/sup 7/M/sup -1/s/sup -1/, and k(CO/sub 3//sup -/ + DEHA) = 4.3 x 10/sup 7/M/sup -1/s/sup -1/. The nitroxide radical intermediate produced by hydrogen abstraction in the OH and O/sup -//DEHA systems has an absorption peak at 400 nm, and the uv and visible spectrum is presented. This nitroxide radical is not produced in the CO/sub 3//sup -//DEHA system, indicating that the mode of reaction of CO/sub 3//sup -/ with DEHA does not involve hydrogen abstraction. The nitroxide radical disappears via a bimolecular reaction with the rate constant 2k(nitroxide) = 7.6 x 10/sup 8/M/sup -1/s/sup -1/. 4 figures, 1 table.

• OSTI ID: 6104847
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 83:13; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
400600* -- Radiation Chemistry
AMINES
AQUEOUS SOLUTIONS
CARBON COMPOUNDS
CARBONATES
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
CRYOGENIC FLUIDS
DECOMPOSITION
DISPERSIONS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FLUIDS
HYDROGEN
HYDROXYL RADICALS
HYDROXYLAMINE
KINETICS
LEPTONS
MIXTURES
NONMETALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADICALS
RADIOLYSIS
REACTION KINETICS
SOLUTIONS
SOLVATED ELECTRONS
SPECTRA
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA