In:
Zeitschrift für Naturforschung B, Walter de Gruyter GmbH, Vol. 29, No. 1-2 ( 1974-2-1), p. 91-95
Abstract:
γ-Irradiation of aqueous acetaldehyde in the presence of N 2 O and O 2 at 0°C leads to the formation of 1.5 molecules of acetic acid per OH radical consumed. As intermediates peroxidic compounds are produced with a half life of about 50 min. H 2 O 2 is not formed. The primary step of the reaction is the interaction of the OH radical with acetyldehyde yielding water and acetyl radicals which add oxygen. The so formed acetylperoxy radicals form peroxidic intermediates which decompose to give oxygen, acetic acid, and peracetic acid. The peracetic acid interacts with additional acetaldehyde forming a peroxide that is converted into two molecules of acetic acid in a first order process. At temperatures above 10°C, a chain reaction takes place leading to acetic acid with a G-value of 40 at 40°C. The propagating species are the acetylperoxy and the acetyl radicals. The reaction steps are addition of oxygen to the acetyl radicals and transfer of hydrogen from acetaldehyde to the acetylperoxy radical leading to peracetic acid. In this reaction no hydrogen peroxide is formed.
Type of Medium:
Online Resource
ISSN:
1865-7117
,
0932-0776
DOI:
10.1515/znb-1974-1-229
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
1974
detail.hit.zdb_id:
2078109-X
detail.hit.zdb_id:
124635-5
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