The interaction of stratospherically abundant molecules with ice: A surface chemical approach to heterogeneous atmospheric chemistry
- Univ. of Minnesota, Minneapolis, MN (United States)
To gain understanding of heterogeneous chemistry that occurs in the stratosphere, surface analysis techniques have been used to study the interaction of HCl, OClO and Cl{sub 2} with amorphous and crystalline ultrathin (10-100 monolayers thick) ice films. It has been found that HCl is not stable on the surface of ice, but reacts with ice films to produce HCl{sm_bullet}6H{sub 2}O. Experiments indicate that chloride ions in HCl-6H{sub 2}O are capable of reacting with adsorbed molecules. The interaction of OClO with ice was studied in order to predict whether ice particles perturb OClO photochemistry. The sticking coefficient of OClO to ice coupled with the activation energy for desorption were used to estimate OClO coverages on stratospheric ice particles. The photolysis of both OClO adsorbed to ice and OClO films were studied and compared.
- OSTI ID:
- 370008
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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