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Number of results

Journal

2003 | 1 | 3 | 233-241

Article title

Temperature and pH effects on the kinetics of 2-aminophenol auto-oxidation in aqueous solution

Content

Title variants

Languages of publication

EN

Abstracts

EN
The kinetics of the auto-oxidation of 2-aminophenol (OAP) to 2-amino-phenoxazin-3-one (APX) was followed in air-saturated aqueous solutions and the influence of temperature and pH on the auto-oxidation rate was studied. The kinetic analysis was based on a spectrophotometric method following the increase of the absorbance of APX. The process follows first order kinetics according to the rate law-d[OAP]/dt=k′[OAP]. The experimental data, within the pH range 4–9.85, were analyzed using both differential and incremental methods. The temperature variation of the overall rate constant was studied at pH=9.85 within the range 25–50°C and the corresponding activation energy was evaluated.

Publisher

Journal

Year

Volume

1

Issue

3

Pages

233-241

Physical description

Dates

published
1 - 9 - 2003
online
1 - 9 - 2003

Contributors

  • Department of Physical Chemistry, University of Bucharest, 4-12 bd. Elisabeta, sector 3, 70346, Bucharest, Romania
author
  • Department of Physical Chemistry, University of Bucharest, 4-12 bd. Elisabeta, sector 3, 70346, Bucharest, Romania

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_BF02476226
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