Thermodynamics of Ionization of Aqueous Hydroxybenzaldehydes and Vanillins

Frank J. Millero, J. C. Ahluwalia, Loren G. Hepler

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Abstract

Heats of ionization of o-hydroxybenzaldehyde, m-hydroxybenzaldehyde, p-hydroxybenzaldehyde, vanillin, isovanillin and o-vanillin have been determined calorimetrically at 298° K. Entropies of ionization of these acids in aqueous solution have been calculated from these heats and free energies derived from ionization constants. The thermodynamic data are discussed briefly.

Original languageEnglish (US)
Pages (from-to)319-320
Number of pages2
JournalJournal of Chemical and Engineering Data
Volume9
Issue number2
DOIs
StatePublished - Apr 1 1964

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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