Volumetric and thermal properties of some aqueous electrolyte solutions: Part 5. Potassium bromide and potassium iodide 0.1, 0.5, and 1.0 mol kg -1 solutions at temperatures from T=278.15 to 338.15 K

Alexander Apelblat, Emanuel Manzurola

Research output: Contribution to journalConference articlepeer-review

24 Scopus citations

Abstract

Precise densities of potassium bromide (0.10014, 0.49997, and 0.99962 mol kg-1) and potassium iodide (0.10008, 0.50551, and 0.99993 mol kg -1) aqueous solutions were determined at 1-K temperature intervals from T=278.15 to T=338.15 K, and they are compared with the literature data. Measured densities were expressed as polynomials of temperature, and these polynomials were used in an evaluation of the apparent molar volumes, the cubic expansion coefficients, the apparent molar expansibilities, and the second derivatives of volume with respect to temperature, which are interrelated with the derivatives of isobaric heat capacities with respect to pressure. In the framework of changes in the structure of water, these derivatives are discussed for potassium bromide and potassium iodide solutions.

Original languageEnglish
Pages (from-to)77-88
Number of pages12
JournalJournal of Molecular Liquids
Volume118
Issue number1-3
DOIs
StatePublished - 15 Apr 2005
EventContributions to the 28th International Conference on Solution Chemistry -
Duration: 23 Aug 200328 Aug 2003

Keywords

  • Electrolytes
  • Potassium bromide
  • Potassium iodide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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