Abstract
The electromotive force of HCl–Na2SO4 solutions has been determined from 5 to 50°C and ionic strengths from 0.5 to 6m with a Harned type cell \({\text{Pt; H}}_{\text{2}} ({\text{g, 1 atm}})|{\text{HCl(}}m_1 {\text{) + Na}}_{\text{2}} {\text{SO}}_{\text{4}} {\text{(}}m_2 {\text{)}}|{\text{AgCl, Ag}}\) The results have been used to determine the activity coefficient of HCl in the mixtures. The activity coefficients have been analyzed with the Pitzer equations to account for the ionic interactions. The measurements were used to determine interaction coefficients (β0, β1) for NaHSO4 solutions from 5 to 50°C. The model represents the mean activity coefficients of HCl in the mixtures to ±0.005 over the entire temperature and concentration range of the measurements. The results have been combined with literature data to provide parameters that are valid from 0 to 250°C for NaHSO4 solutions.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
D. M. Campbell, F. J. Millero, R. N. Roy, L. Roy, M. Lawson, K. Vogel, and C. P. Moore, Marine Chem. 44, 221 (1993).
K. S. Pitzer, J. Phys. Chem. 77, 268 (1973).
K. S. Pitzer, in: Activity Coefficients in Electrolyte Solutions K. S. Pitzer, ed., Vol. I, (CRC Press, Boca Raton, Fl., 1991), p. 75.
R. J. Spencer, N. Møller, and J. H. Weare, Geochim. Cosmochim. Acta 54, 575 (1990).
C. H. Harvie, N. Møller, and J. H. Weare, Geochim. Cosmochim. Acta 48, 723 (1984).
N. Møller, Geochim. Cosmochim. Acta 52, 821 (1988).
J. P. Greenberg and N. Møller, Geochim. Cosmochim. Acta 53, 2503 (1989).
J. K. Hovey, K. S. Pitzer, and J. A. Rard, J. Chem. Thermodyn. 25, 173 (1993).
Bates, R. G., Determination of pH Theory and Practice, 2nd edn., (Wiley, New York, 1973), p 479.
A. G. Dickson, J. Chem. Thermodyn. 19, 993 (1987).
F. J. Millero, Thalassia Jugoslavica 18, 253 (1982).
A. G. Dickson, D. J. Wesolowski, D. A. Palmer, and R. E. Mesmer, J. Phys. Chem. 94, 7978 (1990).
K. S. Pitzer, R. N. Roy, and L. F. Silvester, J. Amer. Chem. Soc. 99, 4930 (1977).
E. J. Reardon and R. D. Beckie, Geochim. Cosmochim. Acta 51, 2355 (1987).
H. F. Holmes and R. M. Mesmer, J. Chem. Thermodyn. 24, 317 (1992).
S. L. Clegg and P. Brimblecombe, J. Chem. Eng. Data 40, 43 (1995).
S. L. Clegg, J. A. Rard, and K. S. Pitzer, J. Chem. Soc. Faraday Trans. 90, 1975 (1994).
H. F. Holmes and R. E. Mesmer, J. Chem. Thermodyn. 26, 581 (1994).
H. F. Holmes and R. E. Mesmer, J. Chem. Thermodyn. 25, 99 (1993).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Pierrot, D., Millero, F.J., Roy, L.N. et al. The Activity Coefficients of HCl in HCl–Na2SO4 Solutions from 0 to 50°C and Ionic Strengths Up to 6 Molal. Journal of Solution Chemistry 26, 31–45 (1997). https://doi.org/10.1023/A:1024433011426
Issue Date:
DOI: https://doi.org/10.1023/A:1024433011426