KINETICS OF THE PHOTOCHEMICAL DECOMPOSITION OF OZONE IN 3130 A ULTRAVIOLET LIGHT.
Final technical rept. 1 Aug 65-1 Oct 68,
INSTITUTO SUPERIOR DE INVESTIGACIONES BUENOS AIRES (ARGENTINA) FACULTAD DE QUIMICA Y FARMACIA
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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
- Atmospheric Physics
- Radiation and Nuclear Chemistry