Articles | Volume 20, issue 6
Atmos. Chem. Phys., 20, 3669–3682, 2020
Atmos. Chem. Phys., 20, 3669–3682, 2020

Technical note 26 Mar 2020

Technical note | 26 Mar 2020

Technical note: Determination of binary gas-phase diffusion coefficients of unstable and adsorbing atmospheric trace gases at low temperature – arrested flow and twin tube method

Stefan Langenberg et al.

Related authors

Gas chromatography using ice-coated fused silica columns: study of adsorption of sulfur dioxide on water ice
Stefan Langenberg and Ulrich Schurath
Atmos. Chem. Phys., 18, 7527–7537,,, 2018
Short summary

Cited articles

Anderson, L. C. and Fahey, D. W.: Studies with nitryl hypochlorite: thermal dissociation rate and catalytic conversion to nitric oxide using an NO/O3 chemiluminescence detector, J. Phys. Chem., 94, 644–652,, 1990. a
Becker, K., Heindrichs, A., and Schurath, U.: Ein transportables Gerät zur Kalibrierung von Ozonanalysatoren durch Messung der optischen Absorption, Staub Reinhalt. Luft, 35, 326–329, 1975. a
Brokaw, R. S. and Svehla, R. A.: Viscosity and Thermal Conductivity of the N2O4 2 NO2 System, J. Chem. Phys., 44, 4643–4645,, 1966. a, b
Cantrell, C. A., Davidson, J. A., McDaniel, A. H., Shetter, R. E., and Calvert, J. G.: Infrared absorption cross sections for N2O5, Chem. Phys. Lett., 148, 358–363,, 1988. a
Chambers, F. S. and Sherwood, T. K.: Absorption of Nitrogen Dioxide by Aqueous Solutions, Ind. Eng. Chem., 29, 1415–1422,, 1937. a
Short summary
Gas-phase diffusion is the first step for all heterogeneous reactions under atmospheric conditions. Therefore, we have used two complementary methods for the measurement of diffusion coefficients in the temperature range of 200–300 K: the arrested flow method is best suited for unstable gases (ozone, dinitrogen pentoxide, chlorine nitrate), and the twin tube method is best suited for stable but adsorbing trace gases (nitrogen dioxide, dinitrogen tetroxide).
Final-revised paper