The Apparent Molal Volumes of Aqueous Solutions of NaCl, KCl, MgCl2, Na2SO4, and MgSO4 from 0 to 1000 Bars at 0, 25, and 50°C

Chen Tung Chen, Robert T. Emmet, Frank J. Millero

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Abstract

The densities of aqueous solutions of NaCl, KCl, MgCl2, Na2SO4, and MgSO4 have been measured with a high pressure magnetic float densimeter from 0 to 1000 bars, 0.01 to 1.0 m ionic strength, and at 0, 25, and 50 °C. The relative apparent molal volumes, ϕv(P) ‒ ϕv(0), of these solutions have been fitted to an equation of the form ϕv(P) ‒ ϕv(0) = ϕv°(P) ‒ ϕv°(0) + Sm½ where the relative infinite dilution partial molal volumes, ϕv°(P) ‒ ϕv°(0), and the slopes S are functions of applied pressure and temperature. The pressure, temperature, and concentration dependence of the apparent molal volumes are briefly discussed.

Original languageEnglish (US)
Pages (from-to)201-207
Number of pages7
JournalJournal of Chemical and Engineering Data
Volume22
Issue number2
DOIs
StatePublished - Apr 1 1977

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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