Heterogeneous interactions of chlorine nitrate, hydrogen chloride, and nitric acid with sulfuric acid surfaces at stratospheric temperatures Journal Article uri icon



  • The heterogeneous interactions of ClONO2, HCl and HNO3 with sulfuric acid surfaces were studied using a Knudsen cell flow reactor. The surfaces studied, chosen to simulate global stratospheric particulate, were composed of 65‐75% H2SO4 solutions at temperatures in the range −63 to −43°C. Heterogeneous loss, but not reaction, of HNO3 and HCl occurred on these surfaces and the measured sticking coefficients are reported. Chlorine nitrate reacted on the cold sulfuric acid surfaces, producing gas‐phase HOCl and condensed HNO3. ClONO2 also reacted with HCl dissolved in the 65% H2SO4 solution at −63°C, forming gaseous Cl2. In all cases studied, the sticking and/or reaction coefficients were much larger for the 65% H2SO4 solution at −63°C than for the 75% solution at −43°C.

publication date

  • August 1, 1988

has restriction

  • closed

Date in CU Experts

  • February 23, 2014 9:03 AM

Full Author List

  • Tolbert MA; Rossi MJ; Golden DM

author count

  • 3

Other Profiles

International Standard Serial Number (ISSN)

  • 0094-8276

Electronic International Standard Serial Number (EISSN)

  • 1944-8007

Additional Document Info

start page

  • 847

end page

  • 850


  • 15


  • 8