MEASUREMENT OF ACTIVITY COEFFICIENTS IN MIXED ELECTROLYTES SOLUTIONS CONTAINING NACL IN NaCl - MgCl2 - GLYCINE - H2O
Keywords:
EMF Measurements, Pitzer Model, Electrolyte solution, Activity coefficien, Glycine, Ionic StrengthAbstract
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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