Activity coefficients for HCl + BaCl2 + H2O at different temperatures and effects of higher order electrostatic terms

Rabindra N. Roy, Susan A. Rice, Kathleen M. Vogel, Lakshmi N. Roy, Frank J Millero

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Abstract

Activity coefficients for HCl in the system HCl + BaCl2 + H2O from 278.15 to 318.15 K and at ionic strengths between 0.005 and 4.0 mol kg-1 have been determined by an emf method using a cell without liquid junction of the type Pt;H2(g,1 atm)|HCl(m1),BaCl2(m2)|AgCl,Ag{A}. The thermodynamic properties of asymmetrical mixtures are interpreted by use of Harned's rule and Pitzer's virial coefficient approach including higher order electrostatic terms for mixed-electrolyte solutions. Pitzer's mixing parameters SθH,Ba and ψH,Ba,Cl as well as linear representations of temperature derivative δSθH,Ba/δt and δψH,Ba,Cl/δt, have been estimated. A table for the activity coefficients of BaCl2 in the experimental temperature range is reported. The results are compared with the literature data if available. Hydrochloric acid follows Harned's rule at all experimental ionic strengths and temperatures within experimental error.

Original languageEnglish (US)
Pages (from-to)7706-7710
Number of pages5
JournalJournal of Physical Chemistry
Volume94
Issue number19
StatePublished - 1990

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Activity coefficients
Electrostatics
electrostatics
Ionic strength
coefficients
Hydrochloric Acid
hydrochloric acid
virial coefficients
Hydrochloric acid
Temperature
Electrolytes
temperature
Thermodynamic properties
thermodynamic properties
electrolytes
Derivatives
Liquids
Electric potential
liquids
cells

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Roy, R. N., Rice, S. A., Vogel, K. M., Roy, L. N., & Millero, F. J. (1990). Activity coefficients for HCl + BaCl2 + H2O at different temperatures and effects of higher order electrostatic terms. Journal of Physical Chemistry, 94(19), 7706-7710.

Activity coefficients for HCl + BaCl2 + H2O at different temperatures and effects of higher order electrostatic terms. / Roy, Rabindra N.; Rice, Susan A.; Vogel, Kathleen M.; Roy, Lakshmi N.; Millero, Frank J.

In: Journal of Physical Chemistry, Vol. 94, No. 19, 1990, p. 7706-7710.

Research output: Contribution to journalArticle

Roy, Rabindra N. ; Rice, Susan A. ; Vogel, Kathleen M. ; Roy, Lakshmi N. ; Millero, Frank J. / Activity coefficients for HCl + BaCl2 + H2O at different temperatures and effects of higher order electrostatic terms. In: Journal of Physical Chemistry. 1990 ; Vol. 94, No. 19. pp. 7706-7710.
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