Monatshefte für Chemie / Chemical Monthly

, Volume 119, Issue 11, pp 1201–1206 | Cite as

Mixtures of 1-1 electrolytes: Densities and excess volumes of aqueous NaCl-NaBr solutions at 25°C

  • Anil Kumar
Anorganische Und Physikalische Chemie


The relative densities and excess volumes of mixing are reported for the system consisting of aqueous NaCl and NaBr at 25°C at constant ionic strengths of 0.5, 1, 2, 3, and 4 mol kg−1 of water. The measurements of densities are precise to 3 · 10−6 g cm−3. The densities, apparent molal volumes and excess volumes are analysed with the virial coefficients approach with excellent accuracy. The excess volumes are positive throughout.


Aqueous mixed electrolytes Aqueous NaCl-NaBr Virial coefficients approach Densities Apparent molal volumes Excess volumes of mixing Binary mixing term 

Mischung von 1 : 1-Elektrolyten: Dichten und Excess-Volumina von wäßrigen NaCl-NaBr-Lösungen bei 25°C


Die relativen Dichten und Excess-Volumina der Mischung werden für das System wäßriges NaCl-NaBr bei 25°C und einer konstanten Ionenstärke von 0.5, 1, 2, 3 und 4 mol kg−1 Wasser berichtet. Die Dichtemessungen haben eine Genauigkeit von 3 · 10−6 g cm−3. Die Dichten, die effektiven molalen Volumina und die Excess-Volumina werden von der Virialkoeffizienten-Methode ausgezeichnet wiedergegeben. Die Excess-Volumina sind durchwegs positiv.


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Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • Anil Kumar
    • 1
  1. 1.Department of Sugar ChemistryDeccan Sugar Institute, Manjari (Bk)PuneIndia

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