Solubilities and diffusion of trace gases in cold sulfuric acid films

Langenberg, Stefan; Proksch, Volker; Schurath, U.

doi:10.1016/s1352-2310(97)00490-1

Cited by 12 publications

(18 citation statements)

References 30 publications

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“…For example, using the Langenberg et al 4 data point at 41 wt % sulfuric acid and 243 K (D l ) 8 × 10 -12 m 2 /s) gives C x ) 4.7 × 10 -16 kg m s -2 K -1 , while eq 3 gives C x ) 6.1 × 10 -15 kg m s -2 K -1 (V x ) 43.8 cm 3 /mol for SO 2 ). However, Langenberg et al 4 suggest that their data should be considered lower limits to the diffusion coefficient because of other potential sources of peak broadening in their experiments. Thus, until more experimental data becomes available, we still propose the use of Equation 3 to estimate diffusion coefficients in sulfuric acid solutions.…”

Section: Resultsmentioning

confidence: 99%

Diffusion Coefficients in Cold Sulfuric Acid Solution

Klenø¹,

Kristiansen²,

Nielsen³

et al. 2001

J. Phys. Chem. A

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The diffusion coefficients of dimethyl sulfoxide, dimethyl sulfone, 15 N-labeled DNO 3 , and 17 O-labeled D 2 O in solutions of 0.6-0.8 weight fraction D 2 SO 4 in D 2 O were studied at temperatures from 248 to 298 K by the pulsed gradient spin-echo NMR technique. Diffusion coefficients for these compounds are reported, and an empirical technique for extrapolating the results to sulfuric acid of stratospheric compositions and temperatures is discussed. The viscosity of 0.7 weight fraction D 2 SO 4 in D 2 O at temperatures from 248 to 298 K is also reported.

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Section: Resultsmentioning

confidence: 99%

Diffusion Coefficients in Cold Sulfuric Acid Solution

Klenø¹,

Kristiansen²,

Nielsen³

et al. 2001

J. Phys. Chem. A

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“…This is estimated to be -10 -s s, using measured OH radical concentrations in the Concorde far field plume of -1.5 ppt, at 16 km [Fahey et Note added in proof. A previous publication describing measurements of SO2 solubility in cold (203-243 K) sulfuric acid solutions [Langenberg et al, 1998] has been brought to our attention. When extrapolated to the warmer temperatures, those results agree well with those reported here.…”

Section: Soz + Hono Reaction In Hzsomentioning

confidence: 99%

Uptake of gas‐phase SO₂ in aqueous sulfuric acid: Oxidation by H₂O₂, O₃, and HONO

Rattigan¹,

Boniface²,

Swartz³

et al. 2000

J. Geophys. Res.

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Abstract. Uptake of SO2(g) was measured as a function of sulfuric acid concentration in the range pH = 1 to 70 wt% H2SO 4 at 293 K. Uptake studies were carried out in the presence of solvated H202, 03, HONO, NO•, and HNO3. The studies yielded Henry's law coefficients for SO: which were in accord with previous measurements. The results provided first time determinations at high acidities of rate coefficients for the reaction of SO: with H20:, 03, and HONO in the solvated state. The observed SO:(g) uptake was consistent with bulk phase oxidation processes. The measured rate coefficients were used to evaluate the role of heterogeneous interactions with the selected species for aerosol formation in aircraft plumes. Calculations show that these interactions are insignificant compared to gas phase oxidation by the OH radical.

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“…NO was monitored by a chemiluminescence detector (Marić et al, 1989), which was adapted to the lower flow rates of the diffusion experiments. In the detector, NO reacts with O 3 in a low-pressure reaction chamber (0.9-2 mbar) in a chemiluminescence reaction: The emitted photons were detected using a Hamamatsu R562 photomultiplier tube.…”

Section: Diffusion Of Nitric Oxide (No) In Heliummentioning

confidence: 99%

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

et al. 2020

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Gas-phase diffusion is the first step for all heterogeneous reactions under atmospheric conditions. Knowledge of binary diffusion coefficients is important for the interpretation of laboratory studies regarding heterogeneous trace gas uptake and reactions. Only for stable, nonreactive and nonpolar gases do well-established models for the estimation of diffusion coefficients from viscosity data exist. Therefore, we have used two complementary methods for the measurement of binary diffusion coefficients in the temperature range of 200 to 300 K: the arrested flow method is best suited for unstable gases, and the twin tube method is best suited for stable but adsorbing trace gases. Both methods were validated by the measurement of the diffusion coefficients of methane and ethane in helium and air as well as nitric oxide in helium. Using the arrested flow method the diffusion coefficients of ozone in air, dinitrogen pentoxide and chlorine nitrate in helium, and nitrogen were measured. The twin tube method was used for the measurement of the diffusion coefficient of nitrogen dioxide and dinitrogen tetroxide in helium and nitrogen.

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Solubilities and diffusion of trace gases in cold sulfuric acid films

Cited by 12 publications

References 30 publications

Diffusion Coefficients in Cold Sulfuric Acid Solution

Diffusion Coefficients in Cold Sulfuric Acid Solution

Uptake of gas‐phase SO₂ in aqueous sulfuric acid: Oxidation by H₂O₂, O₃, and HONO

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

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Solubilities and diffusion of trace gases in cold sulfuric acid films

Cited by 12 publications

References 30 publications

Diffusion Coefficients in Cold Sulfuric Acid Solution

Diffusion Coefficients in Cold Sulfuric Acid Solution

Uptake of gas‐phase SO2 in aqueous sulfuric acid: Oxidation by H2O2, O3, and HONO

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

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Uptake of gas‐phase SO₂ in aqueous sulfuric acid: Oxidation by H₂O₂, O₃, and HONO