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Dielectric relaxation of aqueous NaCl solutions
The complex dielectric permittivity of aqueous sodium chloride solutions has been determined in the frequency range 0.2 ≤ v(GHz) ≤ 20 with a commercial dielectric measurement system based on a vector…
Raman spectroscopic investigation of speciation in MgSO4(aq)
Careful measurements have been made of the Raman spectra of aqueous solutions of Mg(ClO4)2, MgCl2, (NH4)2SO4 and MgSO4 down to 50 cm−1 and, in some cases, to extremely low concentrations (≥0.06 mmol…
Chemical speciation of environmentally significant metals with inorganic ligands Part 2: The Cu2+-OH-, Cl-, CO32-, SO42-, and PO43- systems (IUPAC Technical Report)
Complex formation between CuII and the common environmental ligands Cl-, OH-, CO32-, SO42-, and PO43- can have a significant effect on CuII speciation in natural waters with low concentrations of…
Gibbs energies of transfer of cations from water to mixed aqueous organic solvents.
A critical review of this information and its presentation in a manner that permits comparison of different cations in a given solvent mixture and of a given cation transferring into different mixtures is of value.
Interactions and dynamics in electrolyte solutions by dielectric spectroscopy.
It is shown that many of the difficulties associated with this technique have been overcome in recent years by technological developments.
Chemical speciation of environmentally significant metals with inorganic ligands. Part 3: The Pb2+ + OH–, Cl–, CO32–, SO42–, and PO43– systems (IUPAC Technical Report)
Complex formation between PbII and the common environmental inorganic ligands, Cl–, OH–, CO32–, SO42–, and PO43–, can be significant in natural waters with low concentrations of organic matter.…
Is there an anionic Hofmeister effect on water dynamics? Dielectric spectroscopy of aqueous solutions of NaBr, NaI, NaNO3, NaClO4, and NaSCN.
- W. Wachter, W. Kunz, R. Buchner, G. Hefter
- Materials Science, ChemistryThe journal of physical chemistry. A
- 2 September 2005
There were subtle differences in the concentration dependences of the relaxation times which correlated with some, but not all, of the anion properties that are believed to be relevant for explaining the anionic Hofmeister series.
Temperature effects on ion association and hydration in MgSO4 by dielectric spectroscopy.
- C. Akilan, N. Rohman, G. Hefter, R. Buchner
- Chemistry, MedicineChemphyschem : a European journal of chemical…
- 13 November 2006
Effective hydration numbers derived from the DRS spectra indicate that both Mg(2+) and SO(4) (2-) influence solvent water molecules beyond their first hydration spheres but that MgSO(4)(aq) is less strongly hydrated than the previously studied CuSO( 4)(aq).
Enthalpies and entropies of transfer of electrolytes and ions from water to mixed aqueous organic solvents.
A wide-ranging critically evaluated compilation of the standard molar enthalpies and entropies of transfer of electrolytes from water to mixed aqueous-organic solvents were shown. For this…
Complexity in "simple" electrolyte solutions: Ion pairing in MgSO4(aq)
A detailed investigation of aqueous solutions of MgSO4 has been made by dielectric relaxation spectroscopy over a wide range of frequencies (0.2 ≤ ν/GHz ≤ 89) and concentrations (0.017 ≤ c/M ≤ 2.24).…