A microcalorimetric study of the association of hexacyanoferrate(II) ions with calcium and magnesium ions in aqueous solution |
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| Authors: | Gavin R Hedwig Ian D Watson |
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| Institution: | (1) Department of Chemistry, Biochemistry and Biophysics, Massey University, Palmerston North, New Zealand |
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| Abstract: | Using flow microcalorimetry, the ion association reaction M2+(aq)+Fe(CN)
6
4–
(aq)=MFe(CN)
6
2–
(aq) (M=Ca, Mg) has been studied at 25°C over the ionic strength range 0.02 to 0.08 mol-dm–3. Analyses of the data to obtain  Ho, the enthalpy change at infinite dilution, are described. The value obtained for Ho is sensitive to the kind of functions used to correct for non-ideal behavior. |
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| Keywords: | Flow microcalorimetry enthalpy ion association ferrocyanide calcium magnesium aqueous solution |
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