The hydrolysis of CIONOz on sub - micron liquid sulfuric acid aerosol Stephen

نویسندگان

  • M. Ball
  • Alan Fried
  • Bruce E. Henry
  • Michael Mozurkewich
چکیده

The reactive uptake of C1ONO2 on liquid sulfuric acid has been measured for size-selected, sub-micron aerosol in the composition range 36-54% H2SO 4 by weight at = 250 K. A comparison with results from studies employing bulk surfaces at similar temperatures and compositions shows no evidence for a dependence of the reaction probability, y, on size. We use this observation to estimate an upper limit to the diffuso-reactive length of 26 nm for the CIONO2 + H20 reaction on 43 weight % aerosol at 248 K. But, the present values of y are consistently lower than bulk values observed at lower temperatures and similar composition, suggesting that • is temperature dependent.

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تاریخ انتشار 2007