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Determination of the activity coefficients of NaCl in the system NaCl-NH4Cl-H2O
Nanjing University of Chemical Technology.
Nanjing University of Chemical Technology.
Nanjing University of Chemical Technology.
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2001 (English)In: Journal of Solution Chemistry, ISSN 0095-9782, E-ISSN 1572-8927, Vol. 30, p. 463-473Article in journal (Refereed) Published
Abstract [en]

Using ion-selective electrode(s) (ISE) the activity coefficients of NaCl in the system NaCl-NH4Cl-H2O at 10, 25, and 40°C were measured by a computer-controlled automatic titration system. The ionic strength fractions of NH4Cl were 0.2, 0.4, 0.6, and 0.8, respectively. It was found that the influence of the NH4+ cation on the Na glass ISE was small enough to be neglected up to 3.0 mol-kg-1. The Pitzer equation was adopted to calculate the activity coefficients of NaCl in this system and compared with the experimental data. Comparison of results indicates that the Pitzer parameters correlated from solubility data are suitable for calculating the activity coefficients for this system within the saturated solutions.

Place, publisher, year, edition, pages
2001. Vol. 30, p. 463-473
National Category
Energy Engineering
Research subject
Energy Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-6003DOI: 10.1023/A:1010352615827Local ID: 4328c060-0d81-11de-9d3e-000ea68e967bOAI: oai:DiVA.org:ltu-6003DiVA, id: diva2:978879
Note
Upprättat; 2001; 20090310 (xiajix)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Ji, Xiaoyan

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