| Number of Cycles | Kp (10−9 g2∙cm−4∙s−2) (Na2SO4 + 60% V2O5) | Kp (10−10 g2∙cm−4∙s−2) (Na2SO4 + 5% V2O5 + 5% NaCl) |
| 10 | 1.684 | 9.44 |
| 20 | 2.931 | 1.986 |
| 35 | 2.437 | 4.580 |
| 50 | 3.119 | 4.767 |