Abstract
Emf measurements were performed on solutions at temperatures from 278.15 to 318.15 K and at eight different ionic strengths from 0.1 to 3.0 mol kg-1, by using a Harned's emf cell without liquid junction of the type Pt;H2(g, 1 atm)|HCl(m1),-NiCl2(m2)|AgCl{A}. From these measurements, the Pitzer mixing coefficients SθH,Ni and ψH,Ni,Cl as well as linear representation of temperature derivatives δSθH,Ni/δT and δψH,Ni,Cl/δT have been determined. The results are interpreted in terms of simple Harned's rule and Pitzer's formalism for mixed electrolyte solutions. The activity coefficients at ionic strength fraction y of NiCl2 at 298.15 are given.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 7321-7325 |
| Number of pages | 5 |
| Journal | Journal of Physical Chemistry |
| Volume | 94 |
| Issue number | 18 |
| State | Published - 1990 |
| Externally published | Yes |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
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Roy, R. N., Roy, L. N., Farwell, D. G., Smith, K. A., & Millero, F. J. (1990). Thermodynamics of the unsymmetrical mixed electrolyte HCl-NiCl2. Application of Pitzer's equations. Journal of Physical Chemistry, 94(18), 7321-7325.