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Thermodynamics of Dissolution of some Dicarboxylic Acids in Water/Ethane-1,2-Diol Mixtures
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G. A. El-Naggar
Published/Copyright:
September 25, 2009
The pK1 and pK2 values of malic, malonic, maleic, succinic, tartaric, and phthalic acids have been determined in ethane-1,2-diol–water media of varying solvent compositions (0–50 wt% ethane-1,2-diol) within the temperature range (25–65 °C). An extrathermodynamic analysis of the obtained results have been examined, in the light of ΔH°−ΔS° relationship. The pK values have been correlated with the relative permittivity of the medium according to Born’s electrostatic model.
Published Online: 2009-09-25
Published in Print: 2002-10
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Articles in the same Issue
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- Electrodeposition of Copper on Pt(111) Pretreated with Organic Adsorbates
- Kinetics and Mechanism of the Thermal Gas-Phase Reaction between NO2 and Trifluorochloroethene
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