Ozone solubility in concentrated aqueous solutions of salts

Panich, N. M.; Ершов, Б. Г.; Селиверстов, А. Ф.; Basiev, A. G.

doi:10.1134/s1070427207110067

Cited by 17 publications

(18 citation statements)

References 4 publications

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“…On the other hand, the values of ozone solubility found by Briner and Perrottet 12 and Panich et al 17 in solutions of pure NaCl without any additives (neutral medium, pH ∼ 6−7) appear too low (see Figure 1), and the corresponding Setschenow coefficients (K S ∼ 0.5 L/mol; 12 0.4 L/mol 17 ) turn out to be anomalously high. The source of discrepancy is not quite clear, although we may hypothesize that it arises from the increase in ozone decomposition rate, when pH of the solution is shifted toward alkaline medium.…”

Section: Industrial and Engineering Chemistry Researchmentioning

confidence: 86%

“…The main reasons for such significant discrepancies are due, first, to ozone self-decomposition and its interaction with other components of the solution and, second, to the errors in the analytical techniques of dissolved ozone determination. The data − on ozone solubility in chloride solutions are critically discussed in Section , in comparison with the results of this study.…”

Section: Introductionmentioning

confidence: 89%

“…A comparison of the literature values of ozone Henry’s law constant, K H , mol L –1 bar –1 , at room temperature, directly reported in refs − or calculated on the basis of the other solubility parameters given in these works, is shown in Figure . While the apparent Henry’s law constants or equivalent quantities are given in refs , , and − , the values of the true constant were obtained in works and . The apparent Henry’s law constant K H is defined by the relation K H = [O 3 ]/ P (O 3 ), where [O 3 ] is ozone concentration in the reaction solution, mol/L, and P (O 3 ) is ozone partial pressure in the gas phase in contact with it, bar, under steady regime of reactor operation.…”

Section: Introductionmentioning

confidence: 97%

“…In the literature, data on the solubility of ozone in aqueous chloride solutions are given in original works. − There are recent comprehensive and detailed reviews on ozone solubility in liquids, , where the results on ozone in chloride solutions can be found. A comparison of the literature values of ozone Henry’s law constant, K H , mol L –1 bar –1 , at room temperature, directly reported in refs − or calculated on the basis of the other solubility parameters given in these works, is shown in Figure . While the apparent Henry’s law constants or equivalent quantities are given in refs , , and − , the values of the true constant were obtained in works and .…”

Section: Introductionmentioning

confidence: 99%

“…Dependence of ozone Henry’s law constant in aqueous chloride solutions on the concentration of electrolyte at temperature 20–25 °C. Points are the literature data for solutions of NaCl, − ,− and NaCl or KCl . Solid line is the recommendation of this work for solutions of NaCl and NaCl + HCl at 20 °C (calculated from eq ).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Solubility of Ozone and Kinetics of Its Decomposition in Aqueous Chloride Solutions

Леванов

Isaikina

Gasanova

et al. 2018

Ind. Eng. Chem. Res.

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Solubility of ozone and kinetics of its decomposition in aqueous solutions of NaCl and NaCl + HCl have been investigated as functions of solution composition, electrolyte concentration, and temperature. A methodology has been developed, in which dissolved O3 concentration was measured by a direct spectrophotometric technique by absorbance at 260 nm, with ozone decomposition in the sample and the presence of other substances also absorbing light at 260 nm being taken into account. For solutions with concentrations of Cl– 0–2 M and H+ 0–0.5 M, the solubility coefficient (L O3) and Henry’s law constant of ozone (K H) have been determined in the temperature range 20–40 °C, as well as the kinetic order and apparent rate constants of O3 decomposition (at 20 ± 1 °C). Formulas have been obtained for calculating L O3 and K H for various values of temperature and electrolyte concentration. An equation is presented for computing the rate constant of ozone reaction with chloride ion in aqueous solution via the mechanism of oxygen atom transfer as a function of temperature and concentration of H+ ions.

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Section: Industrial and Engineering Chemistry Researchmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Solubility of Ozone and Kinetics of Its Decomposition in Aqueous Chloride Solutions

Леванов

Isaikina

Gasanova

et al. 2018

Ind. Eng. Chem. Res.

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A “turn-on” fluorescent sensor for ozone detection in ambient air using protein-directed gold nanoclusters

et al. 2017

Anal Bioanal Chem

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A "turn-on" fluorescent sensor for ozone using bovine serum albumin-directed gold nanoclusters (BSA-Au NCs) via energy transfer was developed. The spectral overlap of fluorescent spectrum of BSA-Au NCs with absorption spectrum of indigo carmine (IDS) was utilized. Ozone cleaves C = C bond of IDS and suppresses energy transfer from BSA-Au NCs to IDS. Therefore, this proposed fluorescent sensor is a "turn-on" detection motif. It is the first application of fluorescent nanoclusters in sensitively detecting ozone from 0.2 to 12 μM with the limit of detection of 35 nM (the volume of 500 μL, 1.68 ppb). The proposed fluorescent sensor for ozone is more sensitive and faster (within 2 min) than most methods and is with good selectivity for ozone detection against other reactive oxygen species, reactive nitrogen, or metallic ions. Besides, the proposed method is also utlized in ozone detection in ambient air by monitoring 1 h (60 min) in Qijiang district in Chongqing city. The average of concentration of ozone in ambient air ranges from 44.97 to 52.85 μg/m. The results are compared with the automatic monitoring data provided by Qijiang Environmental Monitoring Station and the relative deviations range, respectively, from 2.1 to 5.6%, which suggests that it is a promising fluorescent sensor for ozone in ambient air. This study not only develops a new model of energy transfer motif using BSA-Au NCs as donor and IDS as acceptor but also expands the application of BSA-Au NCs in environmental science. Graphical abstract A "turn-on" fluorescent sensor for ozone detection using bovine serum albumin-directed gold nanoclusters (BSA-Au NCs) via energy transfer is developed. It is the first time to utilize spectral overlap of fluorescent spectrum of BSA-Au NCs with absorption spectrum of indigo carmine and to achieve fast, sensitive, and selective ozone detection with a limit of detection of down to 35 nM (the volume of 500 μL, 1.68 ppb).

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Influence of salinity on the heterogeneous catalytic ozonation process: Implications to treatment of high salinity wastewater

Yuan

Garg

Wang

et al. 2022

Journal of Hazardous Materials

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Ozone solubility in concentrated aqueous solutions of salts

Cited by 17 publications

References 4 publications

Solubility of Ozone and Kinetics of Its Decomposition in Aqueous Chloride Solutions

Solubility of Ozone and Kinetics of Its Decomposition in Aqueous Chloride Solutions

A “turn-on” fluorescent sensor for ozone detection in ambient air using protein-directed gold nanoclusters

Influence of salinity on the heterogeneous catalytic ozonation process: Implications to treatment of high salinity wastewater

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