Hydroscopic Behaviours of Ammonium Sulfate/Organic Mixtures Including Dicarboxylic Acid and Oligomer.

0496254 - ÚCHP 2019 RIV CZ eng C - Conference Paper (international conference)
Bouzidi, Hichem - Zuend, A. - Ondráček, Jakub - Schwarz, Jaroslav - Ždímal, Vladimír
Hydroscopic Behaviours of Ammonium Sulfate/Organic Mixtures Including Dicarboxylic Acid and Oligomer.
Sborník XIX. výroční konference České aerosolové společnosti, pp. 44-47. Praha: Česká Aerosolová společnost, 2018 - (Pokorná, P.), s. 66-71. ISBN 978-80-270-4780-2.
[Výroční konference České aerosolové společnosti /19./. Piešťany (SK), 25.10.2018-26.10.2018]
R&D Projects: GA MŠMT(CZ) LM2015037; GA MŠMT(CZ) EF16_013/0001315
Institutional support: RVO:67985858
Keywords : aerosol particles * hydroscopicity * modeling
OECD category: Environmental sciences (social aspects to be 5.7)

Here, the hygroscopic behavior of submicron particles composed of ammonium sulfate (AS), dicarboxylic acids (including oxalic acid (OA), malonic acid (MA)), and oligomer Poly(ethylene glycol) (PEG-300 (-CH2OCH2-)n) is investigated with a Hygroscopicity Tandem Differential Mobility Analyzer (HTDMA), under relative humidity (RH) below 100%. The aerosol systems were varied in their complexity and ranged from single-component to more complex systems (2, 3 and 4 components). The experimental data are compared with predictions from Zdanovskii-Stokes-Robinson (ZSR) mixing rule (Stokes and Robinson, 1966) and the thermodynamic model Aerosol Inorganic-Organic Mixtures Functional groups Activity Coefficients (AIOMFAC) (Zuend et al., 2011).
Permanent Link: http://hdl.handle.net/11104/0289070