✦ LIBER ✦

Oxidation of sulfur dioxide by ozone in highly dispersed water droplets

✍ Scribed by T. M. Nahir; G. A. Dawson

Publisher: Springer Netherlands
Year: 1987
Tongue: English
Weight: 509 KB
Volume: 5
Category: Article
ISSN: 0167-7764
DOI: 10.1007/bf00113900

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✦ Synopsis

The oxidation of S(IV) by ozone in aqueous solution has been studied in highly dispersed droplets in a laboratory cloud chamber at 20 °C. Urban air was used. Ozone concentrations ranged from 15 to 120 ppb, orders of magnitude lower than most previous works. Rate constants were derived from differential product determination, rather than from rates of decay of bulk reactants. Comparison of the results obtained here with those from previous work indicates that the reaction rate is indeed first order with respect to ozone. The second-order reaction rate constants found in this work lay between, or close to, other recent results, and could be represented by: k = 1.23 × 104 [H+] -°511~ 1 S--I

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