Chemical reaction of ClONO{sub 2} and HCl on ice particles (Type-II PSCs)
Conference
·
OSTI ID:215147
- Massachusetts Institute of Technology, Cambridge, MA (United States)
A fast turbulent flow technique was developed to investigate the heterogeneous reaction of ClONO{sub 2} and HCl directly on water-ice aerosol particles with sizes corresponding to those that make up polar stratospheric clouds(PSCs). The flow system under atmospheric pressure was coupled to a chemical ionization mass spectrometer for the determination of gas phase reactant and product concentrations. The ice particles were generated by injecting the water vapor to be condensed into a large cold cell and were then introduced into the flow tube. The uptake of HCl and its uptake coefficient on ice particles were measured under partial pressure conditions comparable with those in the polar stratosphere, i.e. 10{sup -6} - 10{sup -7} torr HCl. The reaction probabilities, {gamma}, for ClONO{sub 2} and HCl on ice aerosols were measured and compared with probabilities reported previously on bulk solid and ice films.
- OSTI ID:
- 215147
- Report Number(s):
- CONF-950801--
- Resource Type:
- Conference proceedings
- Conference Information:
- 210. national meeting of the American Chemical Society (ACS), Chicago, IL (United States), 20-25 Aug 1995; Is Part Of 210th ACS national meeting. Part 1 and 2; PB: 1866 p.
- Country of Publication:
- United States
- Language:
- English
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