Thermodynamic ionization constants of p-halogenophenols from spectrophotometric measurements |
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| Affiliation: | 1. Food Technology Department, University of Lleida, XaRTA-UTPV, Agrotecnico Center, Rovira Roure 191, 25198 Lleida, Spain;2. Laboratory of Biochemistry, Unity of Mycotoxicology, Faculty of Medicine of Sousse, University of Sousse, Mohamed Karoui, 4002 Sousse, Tunisia |
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| Abstract: | Standard free energies, enthalpies, and entropies of ionization of phenol, p-chlorophenol, p-bromophenol and p-iodophenol in aqueous solution have been determined from spectrophotometric measurements within the temperature range 5–60°C. Difficulties that arise in data-processing of the results have been discussed and a re-assessment of previous values of ΔCp has also been made. |
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