Figure 4.09. H2O-NaCl-KCl Diagram. Ternary phase assemblage diagram for the 3-component system H2O-NaCl-KCl at 20°C and 0.1 MPa pressure based on data from Gevantman (1971, Fig. 2.4). The diagram shows possible brine compositions (colored blue) limited by saturation curves (liquidus curves) for both halite (Hl) and sylvite (Syl). Click on the "Show Phase%" button and mouse over the diagram to see the equilibrium phase assemblages. Depending on the bulk composition, the system may be salty water (Brine) only. The system may be a two-phase mixture of brine + halite, a two-phase mixture of brine + sylvite, or a three-phase mixture of brine + halite + sylvite. Click on the "Coordinates" button to see the chemical compositions of points in the diagram in weight percent as the mouse is moved over the diagram.
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