MEASUREMENT OF ACTIVITY COEFFICIENTS IN MIXED ELECTROLYTES SOLUTIONS CONTAINING NACL IN NACL - MGCL2 - GLYCINE - H2OJournal: International Journal of Engineering Sciences & Research Technology (IJESRT) (Vol.4, No. 11)
Publication Date: 2015-11-30
Authors : A. Kiran Kumar;
Page : 338-342
Keywords : EMF Measurements; Pitzer Model; Electrolyte solution; Activity coefficient; Glycine; Ionic Strength.;
Aqueous solutions of multi component electrolytes solutions are analogues to natural brines encountered in water pollution control, oceanography and petroleum drilling. A thorough knowledge of the thermodynamic properties of these solutions is useful in understanding the behavior of these solutions. Therefore, in present work the activity coefficient (γ) of NaCl in several aqueous quaternary electrolyte mixtures were determined using the Na ion selective electrode by EMF method at temperatures viz., 25oC over an ionic strength. This experimental activity coefficient data were analyzed using the Pitzer equations. With a view to ascertain the validity of Pitzer equations for mixed electrolyte solutions.
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