| Purity | >95% |
| Functionalization degree (% in weight of −OH group) | 4% wt; 6% wt e 9% wt |
| Nanoparticles diameter (nm) | 10 - 20 (4%); 20 - 40 (6%); 50 - 80 (9%) |
| Nanoparticles lenght (µm) | 10 - 30 (4%); 10 - 30 (6%); 10 - 20 (9%) |
| Color | Black |
| Morphology | Elongated tube |
| Fusion point (˚C) | 3652 |
| Boiling point (˚C) | Not determined |
| Thermal conductivity (W/m·K) | 5000 |
| Molar weight (g/mol) | 12.01 |
| Density at 20˚C (g/cm3) | 2.1 |
| Specific heat (kJ/kg·K) | 0.71 |
| Purity | >95% |