Thermodynamic properties of aqueous solutions with citrate ions. Compressibility studies in aqueous solutions of citric acid

Alexander Apelblat, Eli Korin, Emanuel Manzurola

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Sound velocities in aqueous solutions of citric acid were measured from 15 C to 50 C in 5 C intervals, within the 0.1 mol · kg-1 to 5.0 mol · kg-1 concentration range. These sound velocities served to evaluate the isentropic and isothermal compressibilities, the apparent molar compressibilities, the isochoric thermal pressure coefficients, changes of the cubic expansion coefficients with pressure at constant temperature, the changes of heat capacities with volume and hydration numbers of citric acid in aqueous solutions.

Original languageEnglish
Pages (from-to)14-21
Number of pages8
JournalJournal of Chemical Thermodynamics
Volume64
DOIs
StatePublished - 29 May 2013

Keywords

  • Changes in the cubic expansion coefficients with pressure
  • Changes in the in heat capacities with volume
  • Citric acid
  • Isochoric thermal pressure coefficients
  • Isothermal and isentropic compressibilities
  • Sound velocities
  • Structure of aqueous solutions

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Physical and Theoretical Chemistry

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