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Digitale Medien

Autoxidation of NO in aqueous solution (1993)

Awad, Hani H. ; Stanbury, David M.

New York, NY : Wiley-Blackwell

International Journal of Chemical Kinetics 25 (1993), S. 375-381

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Details

ISSN: 0538-8066

Schlagwort(e): Chemistry ; Physical Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: The reaction of NO with O2 has been investigated in aqueous solution. As demonstrated by ion chromatography, the sole product is NO2-. Kinetic studies of the reaction by stopped-flow methods with absorbance and conductivity detection are in agreement that the rate law is -d[O2]/dt=k[NO]2[O2] with k = 2.1 × 106 M-2 s-1 at 25°C. This rate law is unaffected by pH over the range from pH 1 to 13, and it holds with either NO or O2 in excess. By studying the reaction over the temperature range from 10 to 40°C, the following activation parameters were obtained: ΔH≠ = 4.6 ± 2.1 kJ mol-1 and ΔS≠=-96 plusmn; 4 J K-1 mol-1. © 1993 John Wiley & Sons, Inc.

Zusätzliches Material: 2 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/kin.550250506

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