Thermodynamics of the cell: {MexHg1−x|MeCl(m)|AgCl|Ag} (Me = Na,K,Cs) in (ethanol + water) solvent mixtures

Mussini, Patrizia R.; Mussini, T.; Perelli, Andrea; Rondinini, Sandra; Vertova, Alberto

doi:10.1006/jcht.1995.0022

Cited by 25 publications

(16 citation statements)

References 7 publications

(10 reference statements)

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“…of cell (I) and the fitted activity Figure 3 shows the dependence of E°m on the composition of (methanol + water), and the monotonic variation of E°m with w M shows a slight inflexion at w M = 0.2. This inflexion is not a peculiarity of cell (I) in (methanol + water), but also appears in the analogous diagram for (water + ethanol), (1) which is shown for comparison in figure 3. The same behaviour was observed also in (ethanol + water) by the parallel cells (II) and (III):…”

Section: Resultsmentioning

confidence: 87%

“…As has been recently pointed out, (1) studies of strong electrolytes, particularly at moderate to high molalities, in non-aqueous or (aqueous + organic) solvents are all too often hindered by the lack of such fundamental thermodynamic quantities as standard electromotive forces of appropriate reversible cells with related activity coefficients of the relevant electrolytes. This difficulty is of particular concern to electrochemists, electroanalysts, and corrosion scientists (2) when working on electromotive force (e.m.f.)…”

Section: Introductionmentioning

confidence: 99%

“…This prompted the present investigation, concerning NaCl in (methanol + water) containing up to 0.8 mass fraction of methanol, with relative permittivities o e 40, and for the characterization of salt bridges in (aqueous + organic) solvent mixtures. In aqueous solutions, NaCl is known to be totally unsuitable as a salt bridge, but it was recently shown (1) that NaCl in ethanol-rich (water + ethanol) is a moderately good salt bridge for electroanalytical potentiometry.…”

Section: Introductionmentioning

confidence: 99%

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Thermodynamics of the cell: {NaxHg1−x|NaCl(m)|AgCl|Ag} in (methanol+water) solvent mixtures

Basili

Mussini

et al. 1996

The Journal of Chemical Thermodynamics

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Section: Resultsmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Thermodynamics of the cell: {NaxHg1−x|NaCl(m)|AgCl|Ag} in (methanol+water) solvent mixtures

Basili

Mussini

et al. 1996

The Journal of Chemical Thermodynamics

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“…where M is an alkali metal and MX the corresponding halide at molality m in the (aqueous + organic) solvent mixture Z, have recently received a stimulus, (1)(2)(3)(4)(5)(6) due to their importance which extends to the related areas of electroanalysis and metal corrosion. (7,8) In fact, knowledge of such fundamental thermodynamic quantities as the standard electromotive forces (e.m.f.)…”

Section: Introductionmentioning

confidence: 99%

Thermodynamics of the cell { Li- Amalgam | LiX (m)| AgX | Ag }(X=Cl,Br) and medium effects upon LiX in (acetonitrile + water), (1,4-dioxane + water), and (methanol + water) solvent mixtures with related solvation parameters

Mussini

Sala

2000

The Journal of Chemical Thermodynamics

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“…Nevertheless, for the ternary system sodium chloride+water+ethanol, the reports found in the literature comprise only a few studies [3,4,5 ].…”

Section: Introductionmentioning

confidence: 99%

Mean Activity Coefficients of Sodium Chloride in Water-Ethanol Solvents at 25 °C

Lopes¹,

Santos²,

Farelo³

et al. 1999

Port. Electrochim. Acta

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Mean activity coefficients of sodium chloride in water-ethanol mixtures were determined from potentiometric data, at 25 °C, using the classic Pitzer model, based on molalities, and the Pitzer-Simonson model, based on molar fractions. The molalities of NaCl-varied from 0.1 mol kg" 1 to near saturation, in mixed solvents with compositions of 5, 10, 15 and 20% (w/w) ethanol. The results obtained from the two models were compared. INTRODUCTIONSince the beginning of the 20 th century, the study of the mean activity coefficients of electrolytes in water-alcohol mixtures has received considerable attention in the literature [l, 2].Most of the work deals with potentiometric data, using methanol and ethanol as second solvents.Nevertheless, for the ternary system sodium chloride+water+ethanol, the reports found in the literature comprise only a few studies [3,4,5 ].In this work, mean activity coefficients were determined from potentiometric data for NaCl in aqueous-alcoholic solvents, with 5, 10, 15 and 20% (w/w) of ethanol. The sodium chloride concentrations varied from 0.1 mol kg" 1 to near saturation and data were collected at 25 °C. For each ethanol content in the solvent, a function describing the variation of the mean activity coefficient with salt molality was obtained using the Pitzer model [6]. A more complex model, based on molar fractions and devised by Pitzer and Simonson [7], was also applied, and both results were compared for this ternary system. EXPERIMENTALThe materials used were analytical grade sodium chloride, Merck, 99.5 %+, dried in an oven for 12 hours, at 110 °C, and ethanol, Pronalab R, 99.8 %+. All solutions were prepared by weight,

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Thermodynamics of the cell: {MexHg1−x|MeCl(m)|AgCl|Ag} (Me = Na,K,Cs) in (ethanol + water) solvent mixtures

Cited by 25 publications

References 7 publications

Thermodynamics of the cell: {NaxHg1−x|NaCl(m)|AgCl|Ag} in (methanol+water) solvent mixtures

Thermodynamics of the cell: {NaxHg1−x|NaCl(m)|AgCl|Ag} in (methanol+water) solvent mixtures

Thermodynamics of the cell { Li- Amalgam | LiX (m)| AgX | Ag }(X=Cl,Br) and medium effects upon LiX in (acetonitrile + water), (1,4-dioxane + water), and (methanol + water) solvent mixtures with related solvation parameters

Mean Activity Coefficients of Sodium Chloride in Water-Ethanol Solvents at 25 °C

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