| Appearance | White, Solid (flakes, pearls, or granules) |
| State | Solid (at room temperature) |
| Odor | Odorless |
| Density | 2.13 g/cm³ |
| Melting Point | 318°C |
| Boiling Point | 1,388°C |
| Solubility | Highly soluble in water |
| pH (1% Solution) | > 13 (strongly alkaline) |
| Solubility in Water | 109 g per 100 mL at 20°C |
| Viscosity | N/A (Solid form) |
| Flash Point | Non-flammable |