A Low-Temperature Thermodynamic Model for the Na-K-Ca-Mg-Cl

Feb 27, 2017 - These issues lead to inaccurate model predictions when the model is extrapolated beyond its experimental foundations, which is a primar...
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Article pubs.acs.org/jced

A Low-Temperature Thermodynamic Model for the Na-K-Ca-Mg-Cl System Incorporating New Experimental Heat Capacities in KCl, MgCl2, and CaCl2 Solutions Jonathan D. Toner* and David C. Catling Department of Earth & Space Sciences, University of Washington, Box 351310, Seattle, Washington 98195, United States S Supporting Information *

ABSTRACT: Chloride salts and their solutions are common on Earth and perhaps on other solar system bodies. To better understand the effects of freezing and evaporation on mineral formation and the composition of residual brines in chloride salt systems, we developed a comprehensive Pitzer model in the Na-K-Ca-Mg-Cl system valid from 298.15 to