Physical Properties of Aqueous Mixed Electrolyte Solutions Of CaCl2 In CaCl2 - MgCl2 - Arginine - H2O at 350C

Abstract

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.