REEXAMINATION OF THE MERCURY - PHOTOSENSITIZED OXIDATION OF PERFLUOROPROPENE: SOME REACTIONS OF ELECTRONICALLY EXCITED OXYGEN MOLECULES.
Abstract
The mercury-photosensitized oxidation of C3F6 at room temperature, with O2 pressures in excess of 50 mm, yielded CF2O, CF3CFO, and C3F6O (perfluoropropylene oxide). The products were monitored continually during irradiation by infrared analysis. It was found that (CF2O) was equal to (CF3CFO). At (O2)/(C3F6) less than one, these yields are unity, but they drop at larger (O2)/(C3F6) ratios. The ratio (C3F6O)/(CF2O) increases linearly with C3F6 pressure, is independent of O2 pressure, and rises slightly as the intensity is lowered. A mechanism is present to account for the general features of the reaction. At high O2 pressures, electronically excited O2 is produced by mercury sensitization. By following the decline in (CF2O) when a competitive third gas was added, we could measure the relative reactivity of the electronically excited O2 with various gases. Values of this reactivity relative to C3F6 are tabulated for 15 gases. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1966
- Accession Number
- AD0803741
Entities
People
- Julian Phillip Heicklen
- Timothy Johnston
Organizations
- The Aerospace Corporation