Products and kinetics of N2O5 interaction on mineral dust

The heterogeneous chemical kinetics of N2O5 on CaCO3 and other atmospheric mineral dust surrogates

Uptake experiments of N2O5 on several mineral dust powder samples were carried out under continuous molecular flow conditions at 298±2 K. At [N2O5]0=(4.0±1.0)×10 cm−3 we have found γ ss values ranging from (3.5±1.1)×10−2 for CaCO3 to (0.20±0.05) for Saharan Dust with γss decreasing as [N2O5]0 increased. The uptake coefficients reported in this work are to be regarded as upper limiting values ow...

Uptake of N2O5 on dust

Kinetics and mechanism of the uptake of N2O5 on mineral dust at 298 K S. Seisel, C. Börensen, R. Vogt, and R. Zellner Institute for Physical and Theoretical Chemistry, University Duisburg-Essen, Germany Ford Forschungszentrum Aachen, Aachen, Germany Received: 3 June 2005 – Accepted: 17 June 2005 – Published: 2 August 2005 Correspondence to: S. Seisel ([email protected]) © 2005 Author(s...

Interactive comment on “The interaction of N2O5 with mineral dust: aerosol flow tube and Knudsen reactor studies” by C. Wagner et al

Interaction of N2O5 with mineral dust

The interaction of N2O5 with mineral dust: aerosol flow tube and Knudsen reactor studies C. Wagner, F. Hanisch, N. Holmes, H. de Coninck, G. Schuster, and J. N. Crowley Max-Planck-Institut für Chemie, Mainz, Germany now at: Bayerisches Staatsministerium für Umwelt, Gesundheit und Verbraucherschutz, Rosenkavalierplatz 2, 81925 München, Germany now at: International Laboratory for Air Quality and...

Cloud condensation nucleation activities of calcium carbonate and its atmospheric ageing products.

Aerosol particles can serve as cloud condensation nuclei (CCN) to form cloud droplets, and its composition is a main factor governing whether an aerosol particle is an effective CCN. Pure mineral dust particles are poor CCN; however, changes in chemical composition of mineral dust aerosol particles, due to heterogeneous reactions with reactive trace gases in the troposphere, can modify their CC...