Calculated X-ray scattering functions for models for aqueous Ph4AsCl which fit the osmotic coefficient data

Harold L. Friedman, Donald M. Zebolsky, Erika Kalman

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Models for Ph4AsCl (aq.) which incorporate a Gurney cosphere overlap term are fitted to the published osmotic coefficient data. Models with predominantly + - and those with predominantly ++ ion pairing are about equally successful. Further calculations are then made to see how difficult it might be to distinguish between the models by scattering x rays, electrons, or neutrons from the aqueous solution in the rather low concentration range in which the models might be realistic. The x-ray experiment is promising, but high precision in the small-angle region would be necessary.

Original languageEnglish
Pages (from-to)853-865
Number of pages13
JournalJournal of Solution Chemistry
Issue number12
Publication statusPublished - Dec 1 1976



  • Gurney cosphere
  • X-ray scattering
  • aqueous solutions
  • cation-anion and cation-cation pairing
  • osmotic coefficient
  • tetraphenylarsonium chloride

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Physical and Theoretical Chemistry

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