✦ LIBER ✦

A comparison of the thermal and photochemical oxidation of 2-propanol by two peroxoanions

✍ Scribed by Gerald Bida; Ruggero Curci; John O. Edwards

Publisher: John Wiley and Sons
Year: 1973
Tongue: English
Weight: 570 KB
Volume: 5
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550050512

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The chain length (i.e., relative quantum yield) for the oxidation of 2‐propanol by peroxodisulfate ion at 25°C has been studied. A number of initial experiments were carried out in order to clarify the influence of dissolved oxygen, light intensity, cupric ion, and acetone absorption. After these problems were understood, conditions satisfactory for evaluation of chain length were chosen. The chain length was found to be 500 (to within ±100). The difference between this value and the thermal oxidation chain length of 1800 at 60° is, in both direction and magnitude, as expected for a common mechanism and a low activation energy for the propagation steps. A remarkable difference is seen for comparable reactions of peroxodisulfate and peroxodiphosphate anions.

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