The ionization characteristics of monolayers of weak acids and bases

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Abstract

The variation with pH of the surface potentials of spread monolayers of weak acids or bases may be used to calculate the intrinsic ionization constants of the film-forming molecules. The method is valid for condensed monolayers at the air/water interface for regions of a low degree of ionization only. The intrinsic constants for stearic acid and nonadecylamine monolayers are similar to the ionization constants for short-chain fatty acids and amines in aqueous solution. The relations between this and other methods of treating the ionization of a weak acid or base in a surface are discussed.

Original languageEnglish (US)
Pages (from-to)1581-1589
Number of pages9
JournalTransactions of the Faraday Society
Volume52
DOIs
StatePublished - Jan 1 1956
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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