Articles | Volume 15, issue 18
Atmos. Chem. Phys., 15, 10701–10721, 2015
https://doi.org/10.5194/acp-15-10701-2015

Special issue: The CERN CLOUD experiment (ACP/AMT inter-journal SI)

Atmos. Chem. Phys., 15, 10701–10721, 2015
https://doi.org/10.5194/acp-15-10701-2015

Research article 25 Sep 2015

Research article | 25 Sep 2015

Thermodynamics of the formation of sulfuric acid dimers in the binary (H2SO4–H2O) and ternary (H2SO4–H2O–NH3) system

A. Kürten et al.

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Short summary
New particle formation (NPF) is an important atmospheric process. At cold temperatures in the upper troposphere the binary (H2SO4-H2O) and ternary (H2SO4-H2O-NH3) system are thought to be important for NPF. Sulfuric acid monomer (H2SO4) and sulfuric acid dimer ((H2SO4)2) concentrations were measured between 208 and 248K for these systems and dimer evaporation rates were derived. These data will help to better understand and predict binary and ternary nucleation at low temperatures.
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