Journal of Atmospheric Chemistry

, Volume 20, Issue 1, pp 17–34

Henry's law coefficients for aqueous solutions of acetone, acetaldehyde and acetonitrile, and equilibrium constants for the addition compounds of acetone and acetaldehyde with bisulfite

  • H. -J. Benkelberg
  • S. Hamm
  • P. Warneck
Article

DOI: 10.1007/BF01099916

Cite this article as:
Benkelberg, H.-., Hamm, S. & Warneck, P. J Atmos Chem (1995) 20: 17. doi:10.1007/BF01099916

Abstract

Vapor phase concentrations of acetone, acetaldehyde and acetonitrile over their aqueous solutions were measured to determine Henry's law partition coefficients for these compounds in the temperature range 5–40 °C. The results are for acetone: ln(H1/atm)=−(5286±100)T+(18.4±0.3); acetaldehyde: ln(H1/atm)=−(5671±22)/T+(20.4±0.1); and acetonitrile: ln(H1/atm)=−(4106±101)/T+(13.8±0.3). Artificial seawater of 3.5% salinity in place of deiionized water raisesH1 by about 15%. A similar technique has been used to measure the equilibrium constants for the addition compounds of acetone and acetaldehyde with bisulfite in aqueous solution. The results are ln(K1/M−1)=(4972±318)/T−(11.2±1.1) and ln(K1/M−1)=(6240±427)/T−(8.1±1.3), respectively. The results are compared and partly combined with other data in the literature to provide an average representation.

Key words

Acetoneacetaldehydeacetonitrilegas/aqueous partition coefficientscarbonyl-bisulfite addition compoundsin-cloud scavenging

Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • H. -J. Benkelberg
    • 1
  • S. Hamm
    • 1
  • P. Warneck
    • 1
  1. 1.Max-Planck Institut für Chemie (Otto-Hahn-Institut)MainzGermany