The Raman spectra of di‐, tri‐ and tetrathionate ions in aqueous solutions

Gerding, H.; Eriks, K.

doi:10.1002/recl.19500690607

Cited by 12 publications

(4 citation statements)

References 4 publications

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“…The reaction schemes of the S 2 O 3 2– + O 3 reaction and the secondary chemistry in neutral aqueous phase are expected as those listed in Table . ,, Figure shows the representative Raman spectra of single aqueous STS microdroplets exposed to O 3 at two distinct RHs. The observed molecular Raman bands prior reaction can be solely assigned to the reactant S 2 O 3 2– . , When comparing the observed molecular Raman bands after reaction with those of several potential products from literature, − Figure S1 shows that identifying SO 4 2– (reaction R1a), S 4 O 6 2– (reaction R1b), and S 3 O 6 2– (reaction R6) as the main products can lead to a good agreement with the observed Raman spectra after reaction. Such assignment agrees with the previous study of Okabe et al, where these three species mentioned above were reported as the final products of the STS + O 3 reaction in a neutral solution.…”

Section: Results Discussionsupporting

confidence: 67%

Accelerated Sulfur Oxidation by Ozone on Surfaces of Single Optically Trapped Aerosol Particles

et al. 2023

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The sulfur oxidation in mixed sodium thiosulfate/sucrose/aqueous microdroplets by gaseous ozone is studied in this work via aerosol optical tweezers coupled with Raman spectroscopy, which can simultaneously determine various physicochemical properties and the heterogeneous reaction kinetics of single optically trapped microdroplets, allowing for elucidating their complicated interplay. According to the kinetics measurement results at different relative humidities, ozone concentrations, and stoichiometries of inorganic and organic solutes, this work finds that a high aerosol ionic strength can accelerate the ozone oxidation of thiosulfate at air−water interfaces, while a high aerosol viscosity prolongs the reaction time scales due to diffusion-limited kinetics. The kinetic multilayer model of aerosol surface and bulk chemistry (KM-SUB) is utilized to investigate the observed heterogeneous kinetics results and to retrieve the surface reaction rate coefficients. The KM-SUB model fit results indicate that the observed kinetics of sulfur oxidation in binary sodium thiosulfate aqueous microdroplets with high ionic strengths is dominated by interfacial reactions, and the fitted surface reaction rate coefficients increase 1 order of magnitude when the droplet ionic strength increases around 40 M. This work further utilizes the kinetics measurements of ozone dependence to discuss the coupling among properties of ozone gas-interface-bulk partitioning and surface reaction rate in the kinetics model. Finally, this work also exploits the surface reaction of thiosulfate with ozone to retrieve the aerosol viscosity of microdroplets containing ternary aqueous sodium thiosulfate and sucrose mixtures, demonstrating the feasibility of pinning down aerosol viscosities via reaction kinetics.

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Section: Results Discussionsupporting

confidence: 67%

Accelerated Sulfur Oxidation by Ozone on Surfaces of Single Optically Trapped Aerosol Particles

et al. 2023

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“…marine isolates from deep sea environments (3000–4000 m depth). On the one hand, results slightly differ since Tuttle and Jannasch (1976) performed their experiments over longer periods of time ranging between 22 and 208 days at very low temperature 0–2°C and their expected oxidized product was polythionate and chiefly tetrathionate, definitely lacking in the present experiments (Gerding and Eriks, 1950). On the other hand, at 25°C and ambient pressure Thiobacillus sp .…”

Section: Resultscontrasting

confidence: 64%

Pressure effects on sulfur‐oxidizing activity of Thiobacillus thioparus

Osman

Cardon

Montagnac

et al. 2021

Environ Microbiol Rep

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Carbon capture and storage technologies are crucial for reducing carbon emission from power plants as a response to global climate change. The CarbFix project (Iceland) aims at examining the geochemical response of injected CO2 into subsurface reservoirs. The potential role of the subsurface biosphere has been little investigated up to now. Here, we used Thiobacillus thioparus that became abundant at the CarbFix1 pilot site after injection of CO2 and purified geothermal gases in basaltic aquifer at 400–800 m depth (4–8 MPa). The capacity of T. thioparus to produce sulfate, through oxidation of thiosulfate, was measured by Raman spectroscopy as a function of pressure up to 10 MPa. The results show that the growth and metabolic activity of T. thioparus are influenced by the initial concentration of the electron donor thiosulfate. It grows best at low initial concentration of thiosulfate (here 5 g.l−1 or 31.6 mM) and best oxidizes thiosulfate into sulfate at 0.1 MPa with a yield of 14.7 ± 0.5%. Sulfur oxidation stops at 4.3 ± 0.1 MPa (43 bar). This autotrophic specie can thereby react to CO2 and H2S injection down to 430 m depth and may contribute to induced biogeochemical cycles during subsurface energy operations.

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“…The structure as given by Foss (1964),226 involves in addition to rlf the length of the central S-S bridge, and r2, the S-0 distance, also the 03S-S distances of 0.2116 nm, and the following angles: S-S-S 103.8°, O-S-O 113.6°, and S-S-0 107.9°, on the average. The set of vibration frequencies is incomplete, of the 24 values expected only 20 discrete ones are available when the data of Eucken (1948), 227 Gerding (1950), 228 Siebert (1955),81 Lecomte (1963) ,229 and Meyer (1980) and 148 cm-1.) These include assignments for six S-0 stretching frequencies, one for the S-S stretching frequencies (two more are needed), and seven of the bending and deformation mode frequencies (eight more are needed).…”

Section: F Ions Of the Type X2y" (N > 4)mentioning

confidence: 99%