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

Langenberg, Stefan; Carstens, Torsten; Hupperich, Dirk; Schweighoefer, Silke; Schurath, Ulrich

doi:https://doi.org/10.5194/acp-20-3669-2020

Articles | Volume 20, issue 6

https://doi.org/10.5194/acp-20-3669-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-3669-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 6

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, Torsten Carstens, Dirk Hupperich, Silke Schweighoefer, and Ulrich Schurath

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Final revised paper (published on 26 Mar 2020)
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Preprint (discussion started on 09 Dec 2019)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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SC1: 'Very nice work', Mingjin Tang, 11 Dec 2019
- AC1: 'Reply to Mingjin Tang', Stefan Langenberg, 30 Dec 2019
RC1: 'Review Langenberg et al, gas phase diffusion coefficient measurements', Anonymous Referee #1, 14 Jan 2020
- AC2: 'Reply to anonymous referee #1', Stefan Langenberg, 22 Jan 2020
RC2: 'Rev. of Technical Note: Determination ... diffusion coefficients', Anonymous Referee #2, 05 Feb 2020
- AC3: 'Reply to anonymous referee #2', Stefan Langenberg, 18 Feb 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Stefan Langenberg on behalf of the Authors (18 Feb 2020) Author's response Manuscript

ED: Publish as is (24 Feb 2020) by Daniel Knopf

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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).