THE ACTIVITY AND OSMOTIC COEFFICIENTS OF SOME p-TOLUENESULFONATES AT 40, 60 AND 80°
Osmotic and activity coefficients were determined for lithium, sodium, and potassium p-toluenesulfonates and p-toluenesulfonic acid at 40, 60, and 80 deg by isopiestic comparisons with solutions of sodium chloride. In concentrated solutions the coefficients of the lithium and hydrogen sulfonates decrease while those of potassium sulfonate increase with increasing temperature. The behavior of the sodium sulfonate as the temperature changes approximates that of sodium chloride. These variations are explained as resulting from an increase of kinetic energy and a decrease of ionic hydration at elevated temperatures. The behavior of the activity coefficients of these sulfonates is related to the decrease of resin selectivity with increasing temperature in ion-exchange equilibria. (auth)
- Research Organization:
- Univ. of South Carolina, Columbia
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-030674
- OSTI ID:
- 4837924
- Journal Information:
- Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 9 Vol. 65; ISSN 0022-3654
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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