Estimation of Pitzer interaction parameters from heat capacity, osmotic coefficient and density data: Application to the BaCl 2 -H 2 O system (0

Adeline Lach (1) , Laurent André (1) , Arnault Lassin (1) , Mohamed Azaroual (1) , Pierre Cézac (2) , Jean-Paul Serin (2)

1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
2 LATEP - Laboratoire de Génie Thermique Énergétique et Procédés (EA1932)

In this study we proposed a complete methodology to determine a full set of Pitzer interaction parameters for the BaCl2-H2O electrolyte system. The parameters are allow representing the osmotic coefficient, the solution heat capacity and the solution density for temperatures ranging from 0 to 90°C and concentrations up to 2 mol.kgw-1. The work done on the binary BaCl2 system can be extended to many other systems, if sufficient experimental data are available to fully parameterize the systems.

Domains: Environmental Sciences

Adeline Lach, Laurent André, Arnault Lassin, Mohamed Azaroual, Pierre Cézac, et al.. Estimation of Pitzer interaction parameters from heat capacity, osmotic coefficient and density data: Application to the BaCl 2 -H 2 O system (0ABC-Salt IV Workshop 2015, Apr 2015, Heidelberg, Germany. ⟨hal-01135995⟩