KINETICS OF THE PHOTOCHEMICAL DECOMPOSITION OF OZONE IN 3130 A ULTRAVIOLET LIGHT.
Abstract
To better define its stability, the following selected routes of ozone decomposition were investigated: (a) the photochemical decomposition of ozone by the use of an Hg-line 3130A light source; (b) the behavior of O ('D) atoms as species possibly capable of initiating ozone decomposition; and (c) the kinetics of the O ('D) + O3 to 2 O2 reaction in the presence of oxygen and inert gases. Results demonstrate that the maximum quantum efficiency is 6 for pure ozone and not influenced by pressure, temperature and light intensity. Addition of foreign gases decreases the quantum efficiency to a limiting value of 4 in an oxygen-free system. Water vapor increases the reaction rate very markedly. A mechanism for the photodecomposition of O3 is presented and shown to be consistent with the data selected. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1969
- Accession Number
- AD0683733
Entities
People
- E. Castellano
- H. J. Schumacher