| θ Zuc + NaCl | θ Zuc only | Cur (mol/L) | Cur (ppm) |
| 0.610 | 0.640 | 0.543 × 10−4 | 20 |
| 0.647 | 0.703 | 1.086 × 10−4 | 40 |
| 0.762 | 0.814 | 1.629 × 10−4 | 60 |
| 0.812 | 0.873 | 2.172 × 10−4 | 80 |
| 0.901 | 0.944 | 2.715 × 10−4 | 100 |