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

doi:10.1021/j100382a071

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 ^Sθ_H,Ba and ψ_H,Ba,Cl as well as linear representations of temperature derivative δ_Sθ_H,Ba/δt and δψ_H,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 language	English (US)
Pages (from-to)	7706-7710
Number of pages	5
Journal	Journal of physical chemistry
Volume	94
Issue number	19
DOIs	https://doi.org/10.1021/j100382a071
State	Published - 1990
Externally published	Yes

ASJC Scopus subject areas

General Engineering
Physical and Theoretical Chemistry

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@article{fe78028674f44522a751d46944514d76,

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

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.",

author = "Roy, {Rabindra N.} and Rice, {Susan A.} and Vogel, {Kathleen M.} and Roy, {Lakshmi N.} and Millero, {Frank J.}",

year = "1990",

doi = "10.1021/j100382a071",

language = "English (US)",

volume = "94",

pages = "7706--7710",

journal = "Journal of physical chemistry",

issn = "0022-3654",

publisher = "American Chemical Society",

number = "19",

}

TY - JOUR

T1 - Activity coefficients for HCl + BaCl2 + H2O at different temperatures and effects of higher order electrostatic terms

AU - Roy, Rabindra N.

AU - Rice, Susan A.

AU - Vogel, Kathleen M.

AU - Roy, Lakshmi N.

AU - Millero, Frank J.

PY - 1990

Y1 - 1990

N2 - 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.

AB - 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.

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DO - 10.1021/j100382a071

M3 - Article

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JO - Journal of physical chemistry

JF - Journal of physical chemistry

IS - 19

ER -

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

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