Oxygen phase equilibria near 298 K
Abstract
Raman spectra of fluid and solid oxygen have been measured at temperatures near 298 K to pressure greater than 180 kbar (18 GPa). At 298 K, fluid oxygen freezes at 59.1±0.5 kbar which is 2 kbar higher than the freezing pressure of n-H 2 at this temperature. Solid—solid phase transitions are observed near 96 and 99 kbar. The phase boundaries near room temperature and the intense visible absorption spectra of the very high pressure phase are described.
- Publication:
-
Chemical Physics Letters
- Pub Date:
- December 1979
- DOI:
- 10.1016/0009-2614(79)80066-4
- Bibcode:
- 1979CPL....68...49N