Influence of ionic association on the B coefficient of the Jones–Dole equation for Kl and KCl in water–t-butyl alcohol mixtures at 26°C

Kacperska, Anna; Taniewska-Osińska, Stefania; Bald, Adam; Szejgis, Adam

doi:10.1039/ft9908602225

Cited by 30 publications

(1 citation statement)

References 17 publications

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“…In the study of diffusion of solvated electrons (e s - ) in solvents, the mobilities of ions are needed as reference data. , In our study of the reactivities of e s - with ions in water/alcohol mixed solvents, − the conductances of ionic solutes were also measured to approximate the mutual diffusion coefficients of the reactants (e s - + ion) in a solvent. Both reactivity of e s - and the mobilities of e s - 6 and ions − in solvents are affected by the solvent structure.…”

Section: Introductionmentioning

confidence: 99%

Electrical Conductances of Tetraphenylphosphonium and Tetraphenylboride Salts in C₁ to C₄ Alcohols

Zhao¹,

Freeman²

1996

J. Phys. Chem.

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The electrical conductances of three large-ion salts, tetraphenylphosphonium chloride (TPPC), tetraphenylphosphonium bromide (TPPB), and sodium tetraphenylboride (STPB), have been measured in water and each of the C 1 to C 4 alcohols at different temperatures. The molar conductivities of the large ions TPP + and TPB -vary inversely with the solvent viscosity η and with the carbon number N of the solvent molecules: (N + 1) 1/2 ηλ 0 ) constant. The value of this constant is slightly dependent on the chain structure of the alcohol: for TPP + , 28.6 (10 -7 Pa‚s‚S‚m 2 /mol) in 1-alkanols, 30.0 in 2-alkanols, 30.4 in isobutanol, 26.9 in tert-butyl alcohol; for TPB -the respective values are 30.0, 31.5, 31.9, and 27.9. In water the values of (N + 1) 1/2 ηλ 0 of TPP + (18.4) and TPB -(17.7) are the lowest, while the values for the small ions (44.6, Na + ; 69.8, Br -; 67.9, Cl -) are the highest among all the solvents. In alcohols and water, the activation energies for molar conductivities (E Λ 0 ) of the three salts are nearly the same as those of E η of the solvents, with one exception. In tert-butyl alcohol the values of E Λ 0 (21 kJ/mol, TPPB; 22, TPPC; 19, STPB) are similar to those of the corresponding salts in other butanols and much lower than E η of tert-butyl alcohol (31 kJ/mol). The activation energy of diffusion of the large tetraphenyl ions through the butanols, the molecular sizes of which are much smaller than the tetraphenyl ions, is relatively insensitive to the molecular structure of the butanols.

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Section: Introductionmentioning

confidence: 99%

Electrical Conductances of Tetraphenylphosphonium and Tetraphenylboride Salts in C₁ to C₄ Alcohols

Zhao¹,

Freeman²

1996

J. Phys. Chem.

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Conductivity studies on some alkali metal iodides in aqueous N,N-dimethylformamide solutions at 298.15K

1997

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Potentiometric and conductometric studies of NaI solutions in water + iso-propanol mixtures at 298.15 K

Bald¹

1993

Journal of Electroanalytical Chemistry

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Influence of ionic association on the B coefficient of the Jones–Dole equation for Kl and KCl in water–t-butyl alcohol mixtures at 26°C

Cited by 30 publications

References 17 publications

Electrical Conductances of Tetraphenylphosphonium and Tetraphenylboride Salts in C₁ to C₄ Alcohols

Electrical Conductances of Tetraphenylphosphonium and Tetraphenylboride Salts in C₁ to C₄ Alcohols

Conductivity studies on some alkali metal iodides in aqueous N,N-dimethylformamide solutions at 298.15K

Potentiometric and conductometric studies of NaI solutions in water + iso-propanol mixtures at 298.15 K

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Influence of ionic association on the B coefficient of the Jones–Dole equation for Kl and KCl in water–t-butyl alcohol mixtures at 26°C

Cited by 30 publications

References 17 publications

Electrical Conductances of Tetraphenylphosphonium and Tetraphenylboride Salts in C1 to C4 Alcohols

Electrical Conductances of Tetraphenylphosphonium and Tetraphenylboride Salts in C1 to C4 Alcohols

Conductivity studies on some alkali metal iodides in aqueous N,N-dimethylformamide solutions at 298.15K

Potentiometric and conductometric studies of NaI solutions in water + iso-propanol mixtures at 298.15 K

Contact Info

Product

Resources

About

Electrical Conductances of Tetraphenylphosphonium and Tetraphenylboride Salts in C₁ to C₄ Alcohols

Electrical Conductances of Tetraphenylphosphonium and Tetraphenylboride Salts in C₁ to C₄ Alcohols