The effect of water on the conductance mechanism and the solvation of the proton' in 2-methoxyethanol water mixtures at 25°C

Merken, G. V.; Thun, H. P.; Verbeek, F.

doi:10.1016/0013-4686(76)85101-8

Cited by 6 publications

(2 citation statements)

References 5 publications

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“…This is probably due to the presence of an internal H-bond in methylcellosolve n~olecule (40,41) which makes the formation of a more complex structure in pure solvent difficult, as in the case of the structure of lower aliphatic alcohols. Consequently, less energy is required to break a methoxyethanol molecule from its surrounding medium in order to form an ion solvation shell and, as a result the enthalpy of solution becomes more exothermic.…”

Section: Enthalpy Of Nai Clissolutionmentioning

confidence: 99%

Dissolution enthalpies of NaI in binary mixtures of water with aliphatic alcohols and methylcellosolve at 298.15 K. Enthalpic pair interaction coefficients of NaI–nonelectrolyte in water solution

Piekarski¹

1983

Can. J. Chem.

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The enthalpy of solution, AH,,,,. of NaI in methanol + water, ethanol + water, 11-propanol + water, ~sopropanol + water, and methoxyethanol + water at all compositions and AH,,,, of NaI in s-butanol + water and ter-t-butanol + water from 0 to 5 mol% alcohol was measured.The NaI-nonelectrolytc pair interaction enthalpies were determined and correlated with the functions describing some properties of the nonelectrolyte. A functional group additivity concept, introduced by Savage and Wood for non-ionic solutes, was applied to thc interactions between NaI and nonelectrolytes.HENRYK PIEKARSKI. Can. J . Chem. 61, 2203 (1983).O n a mesuri I'enthalpie de solution AH,,, du NaI en solution dans les solvants suivants: methanol + eau, ithanol + eau, 11-propanol + eau, isopropanol + eau et mithoxyCthanol + eau en toutes proportions ct on a mesure le AH,,,' du NaI en solution dans les melanges de s-butanol eau et de tert-butanol eau dont la teneur en alcool varie de 0 i 5 mol%.O n a ditermini les enthalpies d'interaction de la paire: NaI-nonilectrolytc et on les a reliees aux fonctions qui dicrivent certaines proprietis d'un non ilectrolyte. O n a applique un concept d'addiv~te de groupe fonctionnel, introduit par Savage et Wood pour les solutes non ioniques, aux ~nteractions entre le NaI ct les non ilectrolytes.[Tradu~t par le journal]

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Section: Enthalpy Of Nai Clissolutionmentioning

confidence: 99%

Dissolution enthalpies of NaI in binary mixtures of water with aliphatic alcohols and methylcellosolve at 298.15 K. Enthalpic pair interaction coefficients of NaI–nonelectrolyte in water solution

Piekarski¹

1983

Can. J. Chem.

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“…Gillespie et al (7) point out that, prior to their work, there was disagreement between experimental and calculated vapor-phase compositions, especially at high ammonia concentrations. Some authors had attributed these discrepancies to thermodynamically Inconsistent data (Edwards et al (14), for example), others to shortcomings In existing models (Peng and Robinson (12) and Heldemann and Rlzvl (11), for example). Gillespie et al (1) were able to resolve this disagreement.…”

Section: Introductionmentioning

confidence: 99%

Standard potential of the silver chloride/silver electrode and the second dissociation constant of phosphoric acid in 20, 50, and 80 mass % 2-methoxyethanol + water from -10 to +37 .degree.C

Vega¹,

Barreto²,

Bates³

1991

J. Chem. Eng. Data

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Solvents consisting of 2-methoxyethanol (20, 50, and 80 mass % + water were chosen In a continuing study designed to shed light on the behavior of electrolytes in mixed media at temperatures extending below 0 °C. Electromotive-force measurements of celts with hydrogen and AgCI/Ag electrodes In the range from -10 to +37 °C, together with a recalculation of earlier data In the literature, yielded values of the standard potential of the HCI In the mixed solvents. A disagreement of literature values for the standard potential In the 80 mass % solvent was resolved. A further series of measurements of phosphate buffer solutions In 20 and 50 mass % 2-methoxyethanol + water led to values for the dissociation constant (p/f2) and associated thermodynamic function for dissociation of the primary phosphate Ion H2P04" In these mixed solvents.

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Dissociation Constants of Acetic Acid and Protonated Tris(Hydroxymethyl)‐Aminomethane in 80 mass% 2‐Methoxyethanol/20 Mass % Water in the Range 10 to 50°

Shanbhag

Bates

1981

Bulletin des Soc Chimique

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Electromotive-force measurements of cells without transference have been used to determine the thermodynamic dissociation constqnts of acetic acid and protonated T r i e ( h y d r o x y m e t h y 1 ) a m i n o m e t h a n e (Tris-H ) i n the mixed solvent 80 mass X 2-methoxyethanoll20 mass X vater from 1 0 to 50°C. Hydrogen g a s electrodes and silver-silver chloride electrodes vere used. Thermodynamic constants for the dissociation process vere derived. The enthalpy of dissociation of Tri8.H' was also determined by titration calorimetry and found to be in acceptable agreement with the value obtained from the emf measurements. Allowance for association of the i o n s of the salts used altered the calculated pK values by sbout 0.03 unit (acetic acid) and 0.06 unit (Tri8.H').

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The effect of water on the conductance mechanism and the solvation of the proton' in 2-methoxyethanol water mixtures at 25°C

Cited by 6 publications

References 5 publications

Dissolution enthalpies of NaI in binary mixtures of water with aliphatic alcohols and methylcellosolve at 298.15 K. Enthalpic pair interaction coefficients of NaI–nonelectrolyte in water solution

Dissolution enthalpies of NaI in binary mixtures of water with aliphatic alcohols and methylcellosolve at 298.15 K. Enthalpic pair interaction coefficients of NaI–nonelectrolyte in water solution

Standard potential of the silver chloride/silver electrode and the second dissociation constant of phosphoric acid in 20, 50, and 80 mass % 2-methoxyethanol + water from -10 to +37 .degree.C

Dissociation Constants of Acetic Acid and Protonated Tris(Hydroxymethyl)‐Aminomethane in 80 mass% 2‐Methoxyethanol/20 Mass % Water in the Range 10 to 50°

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