Thermodynamic properties of transition metals in aqueous solution. 2. The enthalpies of mixing of aqueous solutions of CoCl2, CuCl2, and MnCl2 with NaCl at varying ionic strength at 25°C

Donald R. Schreiber, James Huebner, Seyed Rahmani, Frank J. Millero

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Enthalpies of mixing (ΔmH) aqueous solutions of CoCl2, CuCl2, and MnCl2 with NaCl solutions were measured at constant ionic strengths of 0.5, 1.0, and 3.0 molal at 25°C. The excess enthalpy equations of Pitzer were then fit to the resulting ΔmH data. The resulting parameters are the temperature derivatives of the activity coefficient mixing parameters in the Pitzer system. The heat of mixing data for CoCl2 and CuCl2 were in agreement with earlier isomolal results by other workers.

Original languageEnglish (US)
Pages (from-to)201-210
Number of pages10
JournalJournal of Solution Chemistry
Issue number3
StatePublished - Mar 1 1993



  • CoCl
  • CuCl
  • MnCl
  • Pitzer's equations
  • Transition metals
  • enthalpy of mixing

ASJC Scopus subject areas

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

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