Properties of Aqueous Mixed Electrolyte Solutions Of CaCl2 In CaCl2 - MgCl2 Arginine - H2O at 450C

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.