| Physical parameter |
Specification |
| Diameter (nm) |
10~15 |
| Diameter ratio |
(100:1-10000:1) |
| Specific surface area (m²/g) |
230~350 |
| Resistivity |
≦1.2x10⁻³ Ω.cm |
| Moisture |
≦0.4% |
| Impurity content (nickel) |
≦10ppm |
| Impurity content (iron) |
≦500ppm |
| Impurity content (cobalt) |
≦10ppm |