Table 1 Computed chemical properties of saturated CaCl2:2H2O solutions at 50-150°C and ~1 bar.
From: Modeling acid-gas generation from boiling chloride brines
Temperature (°C) | log fHCl (log bar) | pH1 |
| Water Activity | Ionic Strength (molal) | P 0 sat (bar)3 | PH2O (bar)4 |
|---|---|---|---|---|---|---|---|
50 | -5.5 | 3.0 | 5.7 | 0.174 | 35 | 0.124 | 0.022 |
75 | -4.5 | 2.9 | 5.3 | 0.189 | 36 | 0.386 | 0.073 |
100 | -3.7 | 2.8 | 4.9 | 0.200 | 39 | 1.014 | 0.203 |
125 | -3.0 | 2.8 | 4.5 | 0.216 | 40 | 2.322 | 0.502 |
150 | -2.5 | 2.9 | 4.2 | 0.235 | 42 | 4.762 | 1.119 |
, with γ being the activity coefficient from the Pitzer model; 2 Also defined as pmH or p[H]; 3 NIST tables [