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Citation: Li Lin-Wei, Chu De-Ying, Liu Rui-Lin. Determinstion of Standard Transfer Entropies of RbCl from H₂O to Mixtures of H₂O-DMF[J]. Acta Physico-Chimica Sinica, ;1999, 15(03): 265-268. doi: 10.3866/PKU.WHXB19990313 shu

Determinstion of Standard Transfer Entropies of RbCl from H₂O to Mixtures of H₂O-DMF

1.
College of Chemistry and Molecular Engineering,Peking University,Beijing 100871

Received Date: 19 January 1998
Available Online: 15 March 1999

The standard electromotive forces of the reversible cells consisted of the Corning monovalent general cation selective electrode (M + ISE) and chloride selective electrode (Cl ISE), namely
Cl --ISE｜RbCl( m ),H 2O(1- x ),DMF( x )｜M +-ISE
have been measured, and the standard free energies of transfer(ΔStΘ) of RbCl from H2O to mixtures of H2O DMF have been calculated, the standard transfer entropies(ΔStΘ) have been also calculated from temperature coefficients ofΔStΘof RbCl at seven temperatures from 283.15 K to 318.15 K. The behavior of change ofΔStΘof RbCl with experimental temperature and mole fraction ( x ) of DMF in the mixed solvents and its influence on the structure of the mixed solvents were discussed on the basis of solvation theory ofelectrolyte solution.
- RbCl,
- Standard transfer entropies,
- Ionic solvation,
- Structure of solvent
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Determinstion of Standard Transfer Entropies of RbCl from H2O to Mixtures of H2O-DMF

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Determinstion of Standard Transfer Entropies of RbCl from H₂O to Mixtures of H₂O-DMF