Table 7 Zinc speciation, as a function of pH and log 
along the 100 ppm Zn isopleth of the model composite ore-brine at 100°Cab
along the 100 ppm Zn isopleth of the model composite ore-brine at 100°CabpH | log | Iron phasecsaturation | Cation | Chloride complexes | Sulfide complexes | Hydroxide complexes | Acetate complexes | Malonate complexes | Data set |
|---|---|---|---|---|---|---|---|---|---|
8.00 | -50.55 | Hm | 0.11 | 31.53 | 9.2 × 10-14 | 67.90 | 0.45 | 9.0 × 10-3 | 5 |
7.00 | -50.35 | Hm | 0.28 | 81.15 | 3.8 × 10-12 | 17.30 | 1.22 | 0.02 | 4 |
5.00 | -50.3 | Hm | 0.35 | 98.43 | 2.9 × 10-8 | 0.21 | 0.97 | 0.23 | 3 |
4.00 | -50.3 | Py | 0.36 | 99.36 | 2.9 × 10-6 | 0.02 | 0.24 | 9.6 × 10-3 | 2 |
3.00 | -50.3 | Py | 0.36 | 99.60 | 2.7 × 10-4 | 2.2 × 10-3 | 0.03 | 2.0 × 10-3 | 1 |