Accession Number:

AD0683733

Title:

KINETICS OF THE PHOTOCHEMICAL DECOMPOSITION OF OZONE IN 3130 A ULTRAVIOLET LIGHT.

Descriptive Note:

Final technical rept. 1 Aug 65-1 Oct 68,

Corporate Author:

INSTITUTO SUPERIOR DE INVESTIGACIONES BUENOS AIRES (ARGENTINA) FACULTAD DE QUIMICA Y FARMACIA

Personal Author(s):

Report Date:

1969-02-01

Pagination or Media Count:

37.0

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

Subject Categories:

  • Atmospheric Physics
  • Radiation and Nuclear Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE