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

Authors

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