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Title: Hygroscopicity of organic compounds as a function of carbon chain length, carboxyl, hydroperoxy, and carbonyl functional groups

Journal Article · · Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory
 [1];  [2];  [2];  [3];  [4];  [2];  [3]
  1. Colorado State Univ., Fort Collins, CO (United States); Univ. of North Carolina, Chapel Hill, NC (United States)
  2. Univ. of Colorado, Boulder, CO (United States)
  3. Colorado State Univ., Fort Collins, CO (United States)
  4. North Carolina State Univ., Raleigh, NC (United States)

The albedo and microphysical properties of clouds are controlled in part by the hygroscopicity of particles serving as cloud condensation nuclei (CCN). Hygroscopicity of complex organic mixtures in the atmosphere varies widely and remains challenging to predict. Here we present new measurements characterizing the CCN activity of pure compounds in which carbon chain length and the number of hydroperoxy, carboxyl, and carbonyl functional groups were systematically varied to establish the contributions of these groups to organic aerosol apparent hygroscopicity. Apparent hygroscopicity decreased with carbon chain length and increased with polar functional groups in the order carboxyl > hydroperoxy > carbonyl. Activation diameters at different supersaturations deviated from the -3/2 slope in log-log space predicted by Köhler theory, suggesting that water solubility limits CCN activity of particles composed of weakly functionalized organic compounds. Results are compared to a functional group contribution model that predicts CCN activity of organic compounds. The model performed well for most compounds but under-predicted the CCN activity of hydroperoxy groups. New best-fit hydroperoxy group/water interaction parameters were derived from the available CCN data. Lastly, these results may help improve estimates of the CCN activity of ambient organic aerosols from composition data.

Research Organization:
Univ. of Colorado, Boulder, CO (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
SC0012043
OSTI ID:
1364101
Journal Information:
Journal of Physical Chemistry. A, Molecules, Spectroscopy, Kinetics, Environment, and General Theory, Vol. 121, Issue 27; ISSN 1089-5639
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (101)

Atmospheric Processes and Their Controlling Influence on Cloud Condensation Nuclei Activity journal February 2015
On the Atmospheric Transmission of Sun Radiation and on Dust in the Air journal January 1929
A review of measurement-based assessments of the aerosol direct radiative effect and forcing journal January 2006
An Association between Air Pollution and Mortality in Six U.S. Cities journal December 1993
“What We Breathe Impacts Our Health: Improving Understanding of the Link between Air Pollution and Health” journal May 2016
Known and Unexplored Organic Constituents in the Earth's Atmosphere journal March 2007
Chemistry of secondary organic aerosol: Formation and evolution of low-volatility organics in the atmosphere journal May 2008
Kinetics, products, and mechanisms of secondary organic aerosol formation journal January 2012
Secondary organic aerosol formation in cloud and fog droplets: a literature evaluation of plausibility journal January 2000
CMAQ Model Performance Enhanced When In-Cloud Secondary Organic Aerosol is Included: Comparisons of Organic Carbon Predictions with Measurements journal December 2008
Secondary organic aerosol formation in cloud droplets and aqueous particles (aqSOA): a review of laboratory, field and model studies journal January 2011
Aqueous Organic Chemistry in the Atmosphere: Sources and Chemical Processing of Organic Aerosols journal January 2015
Evolution of Organic Aerosols in the Atmosphere journal December 2009
The hygroscopicity parameter (κ) of ambient organic aerosol at a field site subject to biogenic and anthropogenic influences: relationship to degree of aerosol oxidation journal January 2010
CCN activity of organic aerosols observed downwind of urban emissions during CARES journal January 2013
A simplified description of the evolution of organic aerosol composition in the atmosphere: VAN KREVELEN DIAGRAM OF ORGANIC AEROSOL journal April 2010
Carbon oxidation state as a metric for describing the chemistry of atmospheric organic aerosol journal January 2011
Laboratory studies of the chemical composition and cloud condensation nuclei (CCN) activity of secondary organic aerosol (SOA) and oxidized primary organic aerosol (OPOA) journal January 2011
Impacts of organic aerosols and its oxidation level on CCN activity from measurement at a suburban site in China journal January 2016
Measurements of the Sensitivity of Aerosol Hygroscopicity and the κ Parameter to the O/C Ratio journal December 2013
Influence of Functional Groups on Organic Aerosol Cloud Condensation Nucleus Activity journal August 2014
A single parameter representation of hygroscopic growth and cloud condensation nucleus activity journal January 2007
Hygroscopicity frequency distributions of secondary organic aerosols: HYGROSCOPICITY FREQUENCY DISTRIBUTIONS journal February 2012
Group-contribution estimation of activity coefficients in nonideal liquid mixtures journal November 1975
Thermodynamic equilibrium of organic-electrolyte mixtures in aerosol particles journal June 2002
Application of several activity coefficient models to water-organic-electrolyte aerosols of atmospheric interest journal January 2005
Influence of non-ideality on condensation to aerosol journal January 2009
Prediction of cloud condensation nuclei activity for organic compounds using functional group contribution methods journal January 2016
A thermodynamic model of mixed organic-inorganic aerosols to predict activity coefficients journal January 2008
A Simple "Back of the Envelope" Method for Estimating the Densities and Molecular Volumes of Liquids and Solids journal November 1994
Area method for prediction of fluid-phase equilibria journal March 1992
A single parameter representation of hygroscopic growth and cloud condensation nucleus activity – Part 2: Including solubility journal January 2008
Reconciliation of measurements of hygroscopic growth and critical supersaturation of aerosol particles in central Germany journal January 2010
Towards closing the gap between hygroscopic growth and activation for secondary organic aerosol: Part 1 – Evidence from measurements journal January 2009
Towards closing the gap between hygroscopic growth and activation for secondary organic aerosol – Part 2: Theoretical approaches journal January 2009
Amorphous and crystalline aerosol particles interacting with water vapor: conceptual framework and experimental evidence for restructuring, phase transitions and kinetic limitations journal January 2009
Effect of chemical mixing state on the hygroscopicity and cloud nucleation properties of calcium mineral dust particles journal January 2009
The Role of Temperature in Cloud Droplet Activation journal September 2012
CCN activation experiments with adipic acid: effect of particle phase and adipic acid coatings on soluble and insoluble particles journal January 2008
Vapor-liquid equilibria by UNIFAC group contribution. 5. Revision and extension journal October 1991
Role of molecular size in cloud droplet activation journal January 2009
Saturation Vapor Pressures and Transition Enthalpies of Low-Volatility Organic Molecules of Atmospheric Relevance: From Dicarboxylic Acids to Complex Mixtures journal February 2015
Modeling the gas-particle partitioning of secondary organic aerosol: the importance of liquid-liquid phase separation journal January 2012
Cloud droplet activation of polymerized organic aerosol journal January 2006
Compound Identification in Organic Aerosols Using Temperature-Programmed Thermal Desorption Particle Beam Mass Spectrometry journal August 1999
Real-Time Chemical Analysis of Organic Aerosols Using a Thermal Desorption Particle Beam Mass Spectrometer journal July 2000
Identification and quantification of oxidized organic aerosol compounds using derivatization, liquid chromatography, and chemical ionization mass spectrometry journal December 2016
Scanning Flow CCN Analysis—A Method for Fast Measurements of CCN Spectra journal November 2009
Scanning Mobility CCN Analysis—A Method for Fast Measurements of Size-Resolved CCN Distributions and Activation Kinetics journal August 2010
Surfactant effect on cloud condensation nuclei for two-component internally mixed aerosols: CCN ACTIVITY OF SURFACTANTS journal February 2016
A Continuous-Flow Streamwise Thermal-Gradient CCN Chamber for Atmospheric Measurements journal March 2005
Thermodynamic Model of the System H + −NH 4 + −Na + −SO 4 2- −NO 3 - −Cl - −H 2 O at 298.15 K journal March 1998
Atmospheric aerosol models for systems including the ions H + , NH 4 + , Na + , SO 4 2− , NO 3 , Cl , Br , and H 2 O journal January 2002
Calibration and measurement uncertainties of a continuous-flow cloud condensation nuclei counter (DMT-CCNC): CCN activation of ammonium sulfate and sodium chloride aerosol particles in theory and experiment journal January 2008
Trends in particle-phase liquid water during the Southern Oxidant and Aerosol Study journal January 2014
Cloud condensation nucleation activity of biomass burning aerosol journal January 2009
Accurate Determination of Aerosol Activity Coefficients at Relative Humidities up to 99% Using the Hygroscopicity Tandem Differential Mobility Analyzer Technique journal September 2013
Hygroscopic growth and cloud droplet activation of xanthan gum as a proxy for marine hydrogels: HYGROSCOPICITY OF XG AS MARINE HYDROGEL journal October 2016
Thermodynamic and kinetic behavior of glycerol aerosol journal August 2016
Application of the tandem differential mobility analyzer to studies of droplet growth or evaporation journal January 1986
Coalescence-based assessment of aerosol phase state using dimers prepared through a dual-differential mobility analyzer technique journal August 2016
Atmospheric Size Distributions Measured by Differential Mobility Optical Particle Size Spectrometry journal January 1998
Water activity in polyol/water systems: new UNIFAC parameterization journal January 2005
Even−Odd Alternation of Evaporation Rates and Vapor Pressures of C3−C9 Dicarboxylic Acid Aerosols journal April 2003
Thermodynamic properties and cloud droplet activation of a series of oxo-acids journal January 2010
The Melting Point Alternation in α,ω-Alkanedithiols journal February 2000
The Melting Point Alternation in α , ω -Alkanedicarboxylic Acids journal September 2000
Yields of  -hydroxynitrates, dihydroxynitrates, and trihydroxynitrates formed from OH radical-initiated reactions of 2-methyl-1-alkenes journal December 2009
Yields of β-Hydroxynitrates and Dihydroxynitrates in Aerosol Formed from OH Radical-Initiated Reactions of Linear Alkenes in the Presence of NO x journal December 2008
Effect of the Keto Group on Yields and Composition of Organic Aerosol Formed from OH Radical-Initiated Reactions of Ketones in the Presence of NO x journal August 2016
Measurements of the viscosities of saturated and compressed liquid normal butane and isobutane journal January 1985
Influence of Functional Groups on the Viscosity of Organic Aerosol journal December 2016
The Reactions Of Ozone With Organic Compounds journal October 1958
The Redox Reaction of 1-Ethoxy- n -heptyl Hydroperoxide journal August 1964
Thermal Desorption Mass Spectrometric Analysis of Organic Aerosol Formed from Reactions of 1-Tetradecene and O 3 in the Presence of Alcohols and Carboxylic Acids journal June 2000
CCN activation of slightly soluble organics: the importance of small amounts of inorganic salt and particle phase journal April 2004
Cloud Droplet Activation of Amino Acid Aerosol Particles journal January 2010
The Kelvin versus the Raoult Term in the Köhler Equation journal December 2008
Cloud albedo enhancement by surface-active organic solutes in growing droplets journal September 1999
Changes in Droplet Surface Tension Affect the Observed Hygroscopicity of Photochemically Aged Biomass Burning Aerosol journal September 2013
The dynamic surface tension of atmospheric aerosol surfactants reveals new aspects of cloud activation journal February 2014
Influence of Soluble Surfactant Properties on the Activation of Aerosol Particles Containing Inorganic Solute journal May 1998
The role of surfactants in Köhler theory reconsidered journal January 2004
Surfactant partitioning in cloud droplet activation: a study of C8, C10, C12 and C14 normal fatty acid sodium salts journal January 2008
Hygroscopic growth and CCN activity of HULIS from different environments: HYGROSCOPICITY OF HULIS journal November 2012
The role of dynamic surface tension in cloud droplet activation
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  • NUCLEATION AND ATMOSPHERIC AEROSOLS: 19th International Conference, AIP Conference Proceedings https://doi.org/10.1063/1.4803393
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Precise, contactless measurements of the surface tension of picolitre aerosol droplets journal January 2016
A simplified treatment of surfactant effects on cloud drop activation journal January 2011
An interfacial mechanism for cloud droplet formation on organic aerosols journal March 2016
A single parameter representation of hygroscopic growth and cloud condensation nucleus activity – Part 3: Including surfactant partitioning journal January 2013
Viscosity of  -pinene secondary organic material and implications for particle growth and reactivity journal April 2013
Relating CCN activity, volatility, and droplet growth kinetics of β-caryophyllene secondary organic aerosol journal January 2009
Volatility and Yield of Glycolaldehyde SOA Formed through Aqueous Photochemistry and Droplet Evaporation journal September 2012
Ammonium Addition (and Aerosol pH) Has a Dramatic Impact on the Volatility and Yield of Glyoxal Secondary Organic Aerosol journal December 2013
Cloud droplet number enhanced by co-condensation of organic vapours journal May 2013
Droplet activation of wet particles: development of the Wet CCN approach journal January 2014
Understanding hygroscopic growth and phase transformation of aerosols using single particle Raman spectroscopy in an electrodynamic balance journal January 2008
Prediction of the Vapor Pressure Boiling Point, Heat of Vaporization and Diffusion Coefficient of Organic Compounds journal August 2003
Association of Hydrocarbon Hydroperoxides journal July 1972
Critical Assessment of Liquid Density Estimation Methods for Multifunctional Organic Compounds and Their Use in Atmospheric Science journal April 2013
α-Pinene Autoxidation Products May Not Have Extremely Low Saturation Vapor Pressures Despite High O:C Ratios journal April 2016

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