Table 6 Particle density and dissolution rates for several Mn forms
Form | Density (g/cm3) | Dissolution rate (g/cm2 per day) | 1 µm dissolution (fraction per unit time) | Dissolution rate notes |
|---|---|---|---|---|
MnSO4 | 3.25 | 1.1 × 10−4 to 7.5 × 10−4 | 0.6–0.1 per hr | Hatch and Gamble solutions [21] |
MnCl2 | 2.98 | 2.9 × 10−5 | 0.6 per day | Estimated [20] |
MnHPO4 | 3.18 | 1.4 × 10−5 to 2.1 × 10−6 | 0.3–0.04 per day | Hatch and Gamble solutions [21] |
MnHPO4 | 3.18 | 1.1 × 10−5 | 0.2 per day | Estimated [23] |
Mn3O4 | 4.84 | 2.1 × 10−7 to 5.3 × 10−8 | 0.003–0.001 per day | Hatch and Gamble solutions [21] |
MnO2 | 5.08 | 5.9 × 10−8a | 0.001 per daya | Estimated [6] |