Saturation Vapor Pressures and Transition Enthalpies of Low-Volatility Organic Molecules of Atmospheric Relevance: From Dicarboxylic Acids to Complex Mixtures
Review article, 2015
There are a number of techniques that can be used that differ in terms of whether they fundamentally probe the equilibrium and the temperature range over which they can be applied. The series of homologous, straight-chain dicarboxylic acids have received much attention over the past decade given their atmospheric relevance, commercial availability, and low saturation vapor pressures, thus making them ideal test compounds. Uncertainties in the solid-state saturation vapor pressures obtained from individual methodologies are typically on the order of 50-100%, but the differences between saturation vapor pressures obtained with different methods are approximately 1-4 orders of magnitude, with the spread tending to increase as the saturation vapor pressure decreases. Some of the dicarboxylic acids can exist with multiple solid-state structures that have distinct saturation vapor pressures. Furthermore, the samples on which measurements are performed may actually exist as amorphous subcooled liquids rather than solid crystalline compounds, again with consequences for the measured saturation vapor pressures, since the subcooled liquid phase will have a higher saturation vapor pressure than the crystalline solid phase. Compounds with equilibrium vapor pressures in this range will exhibit the greatest sensitivities in terms of their gas to particle partitioning to uncertainties in their saturation vapor pressures, with consequent impacts on the ability of explicit and semiexplicit chemical models to simulate secondary organic aerosol formation.
Author
M. Bilde
Aarhus University
K. Barsanti
Portland State University
M. Booth
University of Manchester
C. D. Cappa
University of California
N. M. Donahue
Carnegie Mellon University (CMU)
E. U. Emanuelsson
Aarhus University
G. McFiggans
University of Manchester
U. K. Krieger
Swiss Federal Institute of Technology in Zürich (ETH)
C. Marcolli
Marcolli Chemistry and Physics Consulting GmbH
Swiss Federal Institute of Technology in Zürich (ETH)
D. Tropping
University of Manchester
P. Ziemann
University of Colorado at Boulder
M. Barley
University of Manchester
S. Clegg
University of California
Centre for Ocean and Atmospheric Sciences
B. Dennis-Smither
University of Bristol
Mattias Hallquist
University of Gothenburg
Åsa M. Hallquist
IVL Swedish Environmental Research Institute
A. Khlystov
Desert Research Institute Reno, Division of Atmospheric Sciences
M. Kulmala
University of Helsinki
D. Mogensen
University of Helsinki
C. J. Percival
University of Manchester
F. Pope
University of Birmingham
J. P. Reid
University of Bristol
Mavr da Silva
University of Porto
T. Rosenoern
University of Copenhagen
Kent Salo
Chalmers, Shipping and Marine Technology, Maritime Environmental Sciences
V. P. Soonsin
Swiss Federal Institute of Technology in Zürich (ETH)
Chulalongkorn University
T. Yli-Juuti
University of Eastern Finland
University of Helsinki
N. L. Prisle
University of Helsinki
J. Pagels
Lund University
J. Rarey
DDBST GmbH
The Carl von Ossietzky University of Oldenburg
University of KwaZulu-Natal
A. A. Zardini
Joint Research Centre (JRC), European Commission
I. Riipinen
Stockholm University
Chemical Reviews
0009-2665 (ISSN) 1520-6890 (eISSN)
Vol. 115 10 4115-4156Subject Categories
Chemical Sciences
DOI
10.1021/cr5005502