On the heat of electrolytic dissociation of acetic acid and of the first h‐ion of citric acid in an aqueous solution
- 1 January 1952
- journal article
- research article
- Published by Wiley in Recueil des Travaux Chimiques des Pays-Bas
- Vol. 71 (7) , 699-704
- https://doi.org/10.1002/recl.19520710711
Abstract
The heat of solution of citric and of acetic acid is calculated for various concentrations from the calorimetric experiments of Richards and his coworkers. From these data the heat of electrolytic dissociation of the two acids is calculated. By extrapolation, the heat effect at infinite dilution is evaluated. It is pointed out that for both acids the value of this last heat effect is in good agreement with the value which was obtained by Bates and Pinching for citric acid and by Harned and Ehlers for acetic acid from experiments on the change of the E.M.F. of suitable cells by temperature. Calculation of the heat of dilution from the heat of electrolytic dissociation at infinite dilution is possible at sufficiently low concentrations.Keywords
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