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Reaction kinetics of sodium sulfite oxidation by the rapid-mixing method

✍ Scribed by Charles H. Barron; Harold A. O'Hern

Publisher: Elsevier Science
Year: 1966
Tongue: English
Weight: 736 KB
Volume: 21
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(66)85050-9

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✦ Synopsis

The homogeneous reaction rate of oxygen and sodium sultite in aqueous solution was investigated by the rapid-mixing method of HARTRIDGE and ROUGHTON. The method eliminated the need for interphase diffusion of oxygen, and provided unusual latitude in the investigation of copper catalysis.

The rate of reaction was found to be zero-order with respect to oxygen, and three-halves order with respect to sulfite. While copper in the cupric form was found to have a powerful effect in increasing reaction rate, the cuprous form had a moderate inhibitory effect on rate. A rate expression in reasonable agreement with the results was derived from individual reaction steps proposed by others.

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